{"title":"Output Transformers","description":"There are more output transformers for tube amplifier, you can get your wanted from them.","products":[{"product_id":"iwistao-tube-amplifier-output-transformer-5w-z11-single-ended-silicon-steel-ei-transformers-power-audio-hifi-diy","title":"IWISTAO Tube Amplifier Output Transformer 5W Z11 Single-ended Silicon Steel EI  Audio HIFI DIY","description":"\u003ch1 style=\"text-align: center;\"\u003e\u003cspan\u003eIWISTAO Output Transformer Tube Amplifier Single-ended Primary Impedance 5K 5W for Tubes Amplifier \u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: left;\"\u003e\u003cspan\u003eModel No: WVTR-OT5W\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp align=\"left\"\u003e\u003cspan\u003e1. Used cold-rolled non-oriented high silicon (H10\/0.35EI) dedicated audio chip by Nippon Steel Company.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan\u003e2. High-quality oxygen-free copper wire wrap wire, layered segments, each insulated with insulating paper, carefully wound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan\u003e3. Used advanced dipping process, so that the transformer has good insulation and moisture resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan\u003e4. Wiring using 20cm long leads, more convenient to use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan\u003e5. Sound transparent innocence, sweet tone warm and rich, an excellent solution clarity intensity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e1. Power: 5W\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e2. Frequency Response: 20z-30KHz (-2dB)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e3. Core Specifications: EI57X25 , core section X25MM\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e5. Primary Impedance: 5K,\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e6. Secondary: 0-4-8\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e7. Primary Inductance: 12H\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e8. Primary DC resistance: 560\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e9. The primary current: 50MA\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e10. Grade DC resistance: 2.0\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e11. Weight: 0.6kg\/pc\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e12. Dimension(LxWxH):6cm * 5cm *5cm (excluding the mounting brackets)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e 13.Center Distance of the mounting holes: about 7.2cm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePackage List\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e1 pair 5W output transformers\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow to connect wires with tube and output\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\u003cu\u003e\u003cspan\u003eJust as an example only, you need confirm it according your tube for power amplification.\u003c\/span\u003e\u003c\/u\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cu\u003e\u003cspan\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WVTR-OT5_3_grande.jpg?v=1495637978\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cdiv id=\"gtx-trans\" style=\"position: absolute; left: -5px; top: 206.18px;\"\u003e\n\u003cdiv class=\"gtx-trans-icon\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI STORE","offers":[{"title":"Default Title","offer_id":40348908428,"sku":"WVTR-OT5W","price":39.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTR-OT5_1_800X800_9f3a6570-3da5-4209-a76c-ac89a4bfeab1.jpg?v=1674116491"},{"product_id":"iwistao-tube-amplifier-transformer-kits-inventory-1pc-220w-power-2pcs-output-transformers-for-kt88","title":"IWISTAO Tube Amplifier Transformer Kits Inventory 1pc 220W Power 2pcs Output Transformers for KT88","description":"\u003ch1 style=\"text-align: center;\"\u003e\u003cspan\u003eIWISTAO Tube Amplifier Transformer Kit Inventory for KT88 Tube Amp Including 1pc 220W Power 2pcs Output Transformers HIFI Audio\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eIt is a 220W tube amplifier transformer kit for KT88 or similar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WHFT-S220W.jpg?v=1571995091\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WHFT-S220W_3.jpg?v=1571995091\" alt=\"\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WHFT-S220W_1_1.jpg?v=1571995091\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ch2\u003eA. Power transformer X 1\u003c\/h2\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cbr\u003e1. Power: 220W\u003cbr\u003e2. Core 105x50 35 (tongue width)\u003cbr\u003e3. Primary: 0--220V\/5OHz\u003cbr\u003e4. Secondary:\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cbr\u003e320V-0-320V \/ 0.25A\u003cbr\u003e5V \/ 3A\u003cbr\u003e6.3V \/ 3A (2 groups)\u003cbr\u003e12V\/ 0.2A\u003cbr\u003e35V \/ 0.25A\u003c\/p\u003e\n\u003cp style=\"padding-left: 30px;\"\u003e\u003cbr\u003e5. Weight: 3.6Kg\u003c\/p\u003e\n\u003ch2\u003eB. Output transformer X 2\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e     1. Skeleton: 76x40\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e     2. Primary Impedance: 3.5K\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e     3. Output impedance: 0--4--8 ohms\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e     4. Primary current: 125 mA\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e     5. Inductance: 27 H\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e     6. Core is made of 86 new Japanese import Z11 0.35 annealed sheet\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e     7. Weight: 1.6kg \/ pc\u003c\/span\u003e\u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":41379535692,"sku":"WHFT-S220W","price":134.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WHFT-S220W.jpg?v=1571995091"},{"product_id":"iwistao-13w-tube-amp-output-transformer-single-end-z11-0-35-annealed-silicon-steel-sheet-0-4-8ohm-for-el34-kt88-fu50","title":"IWISTAO 13W Tube Amp Output Transformer Single-end Z11 0.35 Annealed Silicon Steel EL34 KT88 FU50","description":"\u003ch1 align=\"center\"\u003e\u003cspan\u003eIWISTAO 13W Tube Amplifier Output Transformer Single-ended Z11 0.35 Annealed Silicon Steel Sheet 0-4-8ohm for Tubes EL34 KT88 FU50 Audio HIFI \u003c\/span\u003e\u003c\/h1\u003e\n\u003cp align=\"center\" style=\"text-align: left;\"\u003e \u003c\/p\u003e\n\u003cp align=\"center\" style=\"text-align: left;\"\u003e\u003cspan\u003eModel No: WVTR-OT13W\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe output transformer adopt core of Japan Z11 (0.35EI) Annealed Silicon Steel dedicated audio sheet, high quality oxygen-free copper wire coil package, and use pure pulp insulating paper between each insulated layer. Production process of output transformer defying cumbersome, adopt 2 out 3 clips or 4 out 5 clips method with hierarchical segmentation, placing paper with group by group, also with processes of meticulous, careful winding, vacuum impregnation, these lead to the transformer has good insulation and moisture resistant, transparent sound, sweet warm and mellow, excellent solution and clarity, as well as nice shape.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt is a better choice to tube amplifier audiophiles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"WVTR-OT13W(0l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1JhJALXXXXXbMXVXXq6xXFXXXo\/224400538\/HTB1JhJALXXXXXbMXVXXq6xXFXXXo.jpg?size=69131\u0026amp;height=628\u0026amp;width=700\u0026amp;hash=d36122d855cc158e8066d4b30b91c07b\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"WVTR-OT13W(2l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB16iXTLXXXXXc3XXXXq6xXFXXXv\/224400538\/HTB16iXTLXXXXXc3XXXXq6xXFXXXv.jpg?size=73273\u0026amp;height=525\u0026amp;width=700\u0026amp;hash=084873b7346ffcd5e0962c93ff34fb5b\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1rd4zLXXXXXc7XVXXq6xXFXXX9\/224400538\/HTB1rd4zLXXXXXc7XVXXq6xXFXXX9.jpg?size=80323\u0026amp;height=521\u0026amp;width=700\u0026amp;hash=4093273bb435fffd61f4741710fdc484\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cspan\u003ePS: A stereo tube amplifier need 2 pcs output transformers.\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan\u003ePower: 13W\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrequency Response: 20z-30KHz (-2dB)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCore Specifications: EI76X40,\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCore section width x 26mm, stacked thickness x 40mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrimary Impedance: 3.5K\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSecondary: 0-4-8\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrimary Inductance: 27H\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrimary DC resistance: 285\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePrimary current: 85mA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eApplication for tubes KT88,EL34,FU50,.etc\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight: 1.5kg\/pc\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCentral distance of installation holes: 58mm x 62mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e Packing List\u003c\/p\u003e\n\u003cp\u003e1 pc \u003cspan\u003e13W Tube Amplifier Output Transformer\u003c\/span\u003e\u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":42658057100,"sku":"WVTR-OT13W","price":39.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTR-OT13W_800X800_534e63a2-9735-4e01-a17f-c41f4d8ad284.jpg?v=1673510567"},{"product_id":"iwistao-15w-tube-amp-output-transformer-kit-inventory-for-kt88-300b-tube-amplifier-including-2pcs-output-transformers","title":"IWISTAO 15W 2pcs Tube Amp  Output Transformer Inventory for KT88 300B Tube Amplifier","description":"\u003ch1 style=\"text-align: center;\"\u003eIWISTAO 15W Tube Amp Output Transformer Kit Inventory for KT88 300B Tube Amplifier Including 2pcs Output Transformers HIFI Audio\u003c\/h1\u003e\n\u003cp\u003e Model No: \u003cspan\u003eWHFT-OT15W(WS)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt is an output transformer for tube KT88, 300B .\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"WHFT-OT15W(WS)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1RTwaJVXXXXbQXXXXq6xXFXXXB\/224400538\/HTB1RTwaJVXXXXbQXXXXq6xXFXXXB.jpg?size=88147\u0026amp;height=644\u0026amp;width=800\u0026amp;hash=1e177ab78c482316b813498ec5f4fcce\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg alt=\"WHFT-OT15W(WS)1\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1hlvxMVXXXXagXFXXq6xXFXXXZ\/224400538\/HTB1hlvxMVXXXXagXFXXq6xXFXXXZ.jpg?size=65148\u0026amp;height=628\u0026amp;width=800\u0026amp;hash=9df6608f940725b77aa75b5d0c06eb6f\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e     1. Skeleton: 86x40\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e     2. Primary Impedance: 3.5K\u003cbr\u003e     3. Output impedance: 0--4--8 ohms\u003cbr\u003e     4. Primary current: 125 mA\u003cbr\u003e     5. Inductance: ≧ 22 H\u003cbr\u003e     6. Core is made of 86 new Japanese import Z11 0.35 annealed sheet\u003cbr\u003e     7. Weight: 1.9kg \/ pc\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePacking List \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e2 pcs \u003c\/span\u003e15W Tube Amp Output Transformers\u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":42671456588,"sku":"WHFT-OT15W(WS)","price":92.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WHFT-OT15W_WS.jpg?v=1571438873"},{"product_id":"15w-tube-amplifier-output-transformer-single-ended-z11-annealed-silicon-steel-0-4-8ohm-for-tubes-6p14-el34-el84-6p3p-kt88-6p1","title":"15W Tube Amplifier Output Transformer Single-ended Z11 Annealed Silicon 6P14 EL34 EL84 6P3P KT88 6P1","description":"\u003ch1 style=\"text-align: center;\"\u003e\n\u003cspan style=\"font-size: 18.0px;\"\u003e15W Tube Amplifier Output Transformer \u003c\/span\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eSingle-ended \u003c\/span\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eZ11 Annealed Silicon Steel Sheets EI Transformers 0-4-8ohm for Tubes 6P14 EL34 EL84 6P3P KT88 6P1 Audio HIFI DIY \u003c\/span\u003e\n\u003c\/h1\u003e\n\u003ch1 style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eModel No: WVTO-OT15W\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eThe output transformer adopt core of Japan Z11(0.35EI) annealed silicon steel dedicated audio sheets, high quality oxygen-free copper wire coil package, and use pure pulp insulating paper between each insulated layer. Production process of output transformer defying cumbersome, adopt 2 out 3 clips or 4 out 5 clips method with hierarchical segmentation, placing paper with group by group, also with processes of meticulous, careful winding, vacuum impregnation, these lead to the transformer has good insulation and moisture resistant, transparent sound, sweet warm and mellow, excellent solution and clarity, as well as nice shape.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eIt is a better choice to tube amplifier audiophiles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTO-OT15W(2)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1xFpfQFXXXXX5XXXXq6xXFXXXH\/224400538\/HTB1xFpfQFXXXXX5XXXXq6xXFXXXH.jpg?size=180578\u0026amp;height=700\u0026amp;width=700\u0026amp;hash=ecb777dd2a62e5b52d2ce45b8afe4794\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT15W(2)L\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB15pJvLXXXXXa9aXXXq6xXFXXX5\/224400538\/HTB15pJvLXXXXXa9aXXXq6xXFXXX5.jpg?size=76885\u0026amp;height=700\u0026amp;width=700\u0026amp;hash=32e402114dbc852f558937add0991343\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePS: A stereo tube amplifier need 2 pcs output transformer.\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e\u003cbr\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" src=\"http:\/\/wxalbum-10001658.image.myqcloud.com\/wxalbum\/160232\/20170718153509\/f85889a2a7bc0c9a21ea9d51a50d3fb0.jpg\"\u003e\u003c\/div\u003e\n\u003cu\u003e \u003cbr\u003e \u003c\/u\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePower: 15W (20Hz)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eFrequency Response: 20Hz-40KHz, -3dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePrimary Impedance: 5k or 3.5K ohms, two kinds of optional (please specify with leave message, default as 3.5k)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSecondary: 0-4-8\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eCore Size: EI76 stack thickness 50mm,\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eMaterial: Japan imports z11 chip\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePrimary maximum allowed DC current: 150mA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e12. Applicable for tube 6P14 (el34, el84,6p3p, KT88,6P1)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eDimensions: Length 76MM, width 80MM, high 68MM\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eCentral distance of fixing hole: 70mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eWeight: 1.9 kg\/pc\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003ePacking List\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e1pc x  \u003cspan style=\"font-size: 14px; text-align: center;\"\u003e15W Tube Amplifier Output Transformer \u003c\/span\u003e\u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"3.5K ohms","offer_id":42984852684,"sku":"WVTO-OT15W-1","price":45.9,"currency_code":"USD","in_stock":true},{"title":"5K ohms","offer_id":42985249164,"sku":"WVTO-OT15W-2","price":45.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/2c4cdc1c10656b5b16b13c08418774ca.jpg?v=1571438874"},{"product_id":"iwistao-tube-amplifier-transformer-kit-for-6p3p-el34-tube-amp-including-1pc-160w-power-2pcs-output-transformers-hifi-audio","title":"IWISTAO Tube Amp Transformer Kit for 6P3P EL34 Including 1pc 160W Power \u0026 2pcs Output Transformers","description":"\u003ch1 style=\"padding: 5px; text-align: center;\"\u003e \u003cspan style=\"font-family: arial; font-weight: normal; font-size: 18px;\"\u003e\u003cspan style=\"color: #333333; font-family: Arial, Verdana, sans-serif;\"\u003eIWISTAO Tube Amplifier Transformer Kit for 6P3P EL34 Tube Amp Including 1pc 160W Power \u0026amp; 2pcs Output Transformers HIFI Audio\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"propery-title\" style='box-sizing: border-box; margin: 0px 3px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-stretch: inherit; font-size: 13px; line-height: inherit; font-family: \"vertical-align:baseline; float: left; color: #999999; white-space: normal; background-color: #ffffff;'\u003eModel No:\u003c\/span\u003eWHFT-S160W\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eIt is a 160W tube amplifier transformer kit for 6P3P , EL34 or similar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14px;\"\u003ePower Transfomer\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cimg alt=\"WVTR-160Wl)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1tsxQRXXXXXXsXpXXq6xXFXXXa\/224400538\/HTB1tsxQRXXXXXXsXpXXq6xXFXXXa.jpg?size=342988\u0026amp;height=948\u0026amp;width=800\u0026amp;hash=999d692993a2839c120bc34dc3c2a2d8\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14px;\"\u003eOutput Transformer\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-160W1l\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Rk8VRXXXXXbNXXXXq6xXFXXXQ\/224400538\/HTB1Rk8VRXXXXXbNXXXXq6xXFXXXQ.jpg?size=239813\u0026amp;height=634\u0026amp;width=800\u0026amp;hash=924da378aea04ea32b8b7361460bcce5\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003eA. Power transformer X 1\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003ePower: 160W\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003eCore 96x50, 32 (tongue width) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003ePrimary: 0--220V-230V\/50Hz\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003eSecondary: \u003c\/span\u003e\u003cbr\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003e290V-260V-0-260V-290V \/ 0.2A\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003e5V \/ 3A\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003e3.15V-0-3.15V \/ 2.5A (2 groups\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003eWeight: 3.3Kg\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e \u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003eB. Output transformer X 2\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e \u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003e     1. Skeleton: 66x45\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003e     2. Primary Impedance: 3.5K\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003e     3. Output impedance: 0--4--8 Europe\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003e     4. Primary current: 76 mA\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003e     5. Inductance: 25 H\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003e     6. Core is made of 86 new Japanese import Z11 0.35 annealed sheet\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003e    \u003c\/span\u003e\u003cspan style=\"font-size: 14px; line-height: 21px;\"\u003e7. Weight: 1.4kg \/ pc\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"clear: both;\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":42988834892,"sku":"WHFT-S160W","price":86.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/d3f13da502adde47ee0c2099d6adde06.jpg?v=1571438875"},{"product_id":"tube-amplifier-output-transformer-z11-single-ended-silicon-steel-ei-transformers-300b-2a3-power-25w-audio-hifi-diy","title":"IWISTAO 6.5W Output Transformer Tube Amplifier Single-endedTubes EL34 FU7 KT88 KT100 6N5P 2A3","description":"\u003ch1 style=\"padding: 5.0px; text-align: center;\"\u003eIWISTAO Output Transformer Tube Amplifier Single-ended Primary Impedance 3.3K 6.5W for Tubes EL34 FU7 KT88 KT100 6N5P 2A3 \u003c\/h1\u003e\n\u003cp style=\"text-align: left; padding: 5px;\"\u003e\u003cstrong\u003eModel No: WVOT-6.5W\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVOT-6.5W(3l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1QxNALXXXXXb_XVXXq6xXFXXXb\/224400538\/HTB1QxNALXXXXXb_XVXXq6xXFXXXb.jpg?size=51156\u0026amp;height=465\u0026amp;width=640\u0026amp;hash=5ee6203d582ca23b4383a4771ad5d176\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e1. Used cold-rolled non-oriented high silicon (H10\/0.35EI) dedicated audio chip by Nippon Steel Company.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e2. High-quality oxygen-free copper wire wrap wire, layered segments, each insulated with insulating paper, carefully wound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e3. Used advanced dipping process, so that the transformer has good insulation and moisture resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e4. Wiring using 30cm long leads, more convenient to use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e5. Sound transparent innocence, sweet tone warm and rich, an excellent solution clarity intensity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e\u003cimg alt=\"WVOT-6.5W(2l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1WHdOLXXXXXc8XpXXq6xXFXXXU\/224400538\/HTB1WHdOLXXXXXc8XpXXq6xXFXXXU.jpg?size=54897\u0026amp;height=465\u0026amp;width=640\u0026amp;hash=7395a3883e9f972f76b8f9aa9dacaadf\"\u003e\u003cimg alt=\"WVOT-6.5W(1l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1DOtHLXXXXXb6XFXXq6xXFXXXk\/224400538\/HTB1DOtHLXXXXXb6XFXXq6xXFXXXk.jpg?size=59157\u0026amp;height=467\u0026amp;width=640\u0026amp;hash=ed3b8377671b735f178eb037ed09c9a7\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e \u003c\/h2\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e1. Primary impedance (ohms):\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\" style=\"margin-left: 40.0px;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ea) 3.3K with a super-linear fitting (SG)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\" style=\"margin-left: 40.0px;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eb) Primary Inductance: 15H\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\" style=\"margin-left: 40.0px;\"\u003e \u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e2. Secondary (ohms): 4, 8\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e3. Frequency: 20-35K HZ (-2dB)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e4. Core (mm) width × stacked thick tongue: 22 × 30 (EI66 tablets)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e5. Output Power: 6.5W\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e6. Weight (kg): 0.91kg \/pc\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e7. Dimensions (Lx W x H): 66mm × 62mm × 55mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e8. Applicable tubes: 6P3P, EL34, FU7, KT66, KT88, KT100, 6N5P, 2A3, etc.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePacking List\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e1 pair 6.5W \u003cspan style=\"white-space: normal;\"\u003eTube Amplifier \u003c\/span\u003eOutput Transformer \u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":43001381260,"sku":"WVOT-6.5W","price":71.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/2cef16f7edbe19e0c05e52c948039aab.jpg?v=1571438875"},{"product_id":"iwistao-8w-tube-amplifier-output-transformer-z11-single-ended-silicon-steel-18h-0-4-8ohm-for-tubes-6p3p-el34-fu50-audio-hifi","title":"IWISTAO 8W Tube Amplifier Output Transformer Z11 Single-ended Silicon Steel Tubes 6P3P EL34 FU50","description":"\u003ch1 style=\"padding: 5px; text-align: center;\"\u003e\n\u003cspan style=\"font-size: 18px;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-size: 18px; font-weight: normal; color: #333333; font-family: Arial, Verdana, sans-serif;\"\u003eIWISTAO \u003c\/span\u003e\u003cspan style=\"font-family: arial; font-size: 18px; font-weight: normal; line-height: 15.6px;\"\u003e8W Tube Amplifier Output Transformer Z11 Single-ended Silicon Steel 18H 0-4-8ohm for Tubes 6P3P EL34 FU50 Audio HIFI\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px; line-height: 21px; color: #000000; font-family: arial;\"\u003eThe output transformer adopt core of Japan Z11 chip (0.35EI) dedicated audio chip, high quality oxygen-free copper wire coil package, and use pure pulp insulating paper between each insulated layer. Production process of output transformer defying cumbersome, adopt 2 out 3 clips method with hierarchical segmentation, placing paper with group by group, also with processes of meticulous, careful winding, vacuum impregnation, these lead to the transformer has good insulation and moisture resistant, transparent sound, sweet warm and mellow, excellent solution and clarity, as well as nice shape.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial; text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003eIt is a better choice to tube amplifier audiophiles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e \u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial; text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT8W(3l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1IQFORXXXXXcOXXXXq6xXFXXXX\/224400538\/HTB1IQFORXXXXXcOXXXXq6xXFXXXX.jpg?size=561258\u0026amp;height=598\u0026amp;width=800\u0026amp;hash=e70fea6a661bdbe876a2b800ed396bbe\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial; text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial; text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial; text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT8W(2l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1f8A_QVXXXXabapXXq6xXFXXXX\/224400538\/HTB1f8A_QVXXXXabapXXq6xXFXXXX.jpg?size=347119\u0026amp;height=600\u0026amp;width=800\u0026amp;hash=bfd6b907ff2c2c5963b790e9b2b3d8bd\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e \u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e \u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003ePS: A stereo tube amplifier need 2 pcs output transformer.\u003c\/span\u003e\u003cbr\u003e  \u003c\/p\u003e\n\u003ch2 style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px; line-height: 21px;\"\u003e1. Power: 8W (20Hz)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px;\"\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003e2. Frequency Response: 20Hz-40KHz, -3dB\u003cbr\u003e 3. Primary Impedance:  3.5K\u003cbr\u003e 4. Primary copper resistance: about 315 (B-P),\u003cbr\u003e 5. Secondary: 0-4-8\u003cbr\u003e 6. Core Size: EI66 stack thickness 45mm,\u003cbr\u003e 7. Material: Japan imports z11 chip\u003cbr\u003e 8. Inductance: 18H (test equipment CHROMA3302, frequency 1K)\u003cbr\u003e 9. Primary maximum allowed DC current: 100mA\u003cbr\u003e 10. Applicable for tube 6P3P, El34, fu50\u003cbr\u003e 11. Dimensions: Length 68MM, width 65MM, high 60MM\u003cbr\u003e 12. Central distance of fixing hole: 80mm\u003cbr\u003e 13. Weight: 0.9kg\/pc\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px;\"\u003e \u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px;\"\u003e \u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":46810038297,"sku":"WVTO-OT8W","price":21.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/c9492f0b6f99555cbf220b26ec903f21.jpg?v=1571438875"},{"product_id":"50w-tube-amp-output-transformer-single-ended-z11-silicon-annealed-steel-0-4-8ohm-for-2a3-300b-el156-kt88-fu13-el34-6p3p-hifi","title":"IWISTAO 50W Tube Amp Output Transformer Single-ended Z11 Silicon Annealed Steel 2A3 300B","description":"\u003ch1 style=\"text-align: center;\"\u003e\n\u003cspan style=\"font-size: 18.0px;\"\u003e50W Tube Amplifier Output Transformer \u003c\/span\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eSingle-ended \u003c\/span\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eZ11 \u003c\/span\u003e\u003cspan style=\"font-size: 12.0px;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eAnnealed \u003c\/span\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eSilicon Steel EI Transformers 0-4-8ohm for Tubes 2A3 300B EL156 KT88 FU13 EL34 6P3PAudio HIFI DIY \u003c\/span\u003e\n\u003c\/h1\u003e\n\u003ch1 style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eModel No: WVTR-OT50W\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eThe output transformer adopt core of Japan Z11 (0.35EI) \u003c\/span\u003e\u003cspan style=\"font-size: 14.0px; text-align: center;\"\u003eAnnealed Silicon Steel \u003c\/span\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ededicated audio sheet, high quality oxygen-free copper wire coil package, and use pure pulp insulating paper between each insulated layer. Production process of output transformer defying cumbersome, adopt 2 out 3 clips or 4 out 5 clips method with hierarchical segmentation, placing paper with group by group, also with processes of meticulous, careful winding, vacuum impregnation, these lead to the transformer has good insulation and moisture resistant, transparent sound, sweet warm and mellow, excellent solution and clarity, as well as nice shape.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eIt is a better choice to tube amplifier audiophiles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT50W(3l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1_RNuLXXXXXanaXXXq6xXFXXXf\/224400538\/HTB1_RNuLXXXXXanaXXXq6xXFXXXf.jpg?size=57572\u0026amp;height=700\u0026amp;width=700\u0026amp;hash=c3f88493f5c0e8037cf646e78663a10d\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePS: A stereo tube amplifier need 2 pcs output transformers.\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT50W(1l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1pUB0LXXXXXaLXXXXq6xXFXXXy\/224400538\/HTB1pUB0LXXXXXaLXXXXq6xXFXXXy.jpg?size=65972\u0026amp;height=699\u0026amp;width=700\u0026amp;hash=69561c0502ac0755a0a57ec4fcaeef47\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePower: 50W (20Hz)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eFrequency Response: 20Hz-30KHz, -2dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePrimary Impedance: \u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003e3.5K or 2.5K ohms, two kinds of optional (please specify with leave message, default as 3.5k\u003c\/span\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSecondary: 0-4-8\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eCore Size: Wide core tongue 35mm, stack thickness 50 mm (105 pcs plates),\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eMaterial: Japan imports z11 chip\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 14.0px;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eApplicable for tubes\u003c\/span\u003e\u003c\/span\u003e \u003cspan style=\"color: #3c3c3c;\"\u003e: \u003cspan style=\"color: #333333;\"\u003e2A3 300B EL156 KT88 FU13 EL34 6P3P (one tube or p\u003c\/span\u003e\u003c\/span\u003earallel connection tubes)\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight: 3.5kg\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003ePacking List\u003c\/p\u003e\n\u003cp\u003e  \u003cspan style=\"font-size: 14px;\"\u003e  1pc x \u003c\/span\u003e\u003cspan style=\"font-size: 14px; text-align: center;\"\u003e50W Tube Amplifier Output Transformer\u003c\/span\u003e\u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"3.5K ohms","offer_id":47023390745,"sku":"WVTR-OT50W-1","price":145.8,"currency_code":"USD","in_stock":true},{"title":"2.5K ohms","offer_id":47034794009,"sku":"WVTR-OT50W-2","price":145.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/849e04bcb0ed8498c8af5e77ee6a1a70.jpg?v=1571438875"},{"product_id":"iwistao-300b-25w-tube-amplifier-output-transformer-z11-single-ended-silicon-steel-ei-transformers-300b-2a3-power-25w-hifi-diy","title":"IWISTAO 1pc Tube Amplifier Output Transformer EI 25W 300B 2A3 Z11 Single-ended Silicon Steel","description":"\u003cdiv style=\"text-align: center;\"\u003e\n\u003cspan style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 18px;\"\u003eIWISTAO\u003c\/span\u003e\u003cspan style=\"font-size: 18px;\"\u003e 1pc \u003c\/span\u003e\u003cspan style=\"font-size: 18px; font-family: arial, sans-serif;\"\u003eZ11 Single-ended Tube Amplifier Output Transformer \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"text-align: center; font-family: arial, sans-serif; font-size: 18px;\"\u003e\u003cspan style=\"font-size: 18px;\"\u003eSilicon Steel EI Transformers 300B 2A3 Power 25W HIFI DIY \u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"text-align: start;\"\u003e\u003cspan style=\"text-align: center; font-family: arial, sans-serif;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e\u003cbr\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: start;\"\u003e\u003cspan style=\"text-align: center; font-family: arial, sans-serif;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eModel No: WHFT-A300B-OT\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eAdopt High silicon annealing 0.35EI dedicated audio chips. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e1. High quality thick nylon frame and high quality Japan Z11 annealed silicon steel flux H50.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e2. Effectively isolated electromagnetic interference with iron paint shell.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e \u003cspan style=\"text-align: center;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e1. \u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003ePrimary impedance (kilohms): Red-Blue: 3.5K (200MA) or 2.5K\u003c\/span\u003e\u003c\/u\u003e, it is made of taps with linear\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e2. \u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003eSecondary (Ohms): Black-Green-Red: 0 - 4 - 8\u003c\/span\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e3. Frequency: 20-30K Hz (-2dB)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e4. Core (mm) width × stacked thick: 28 × 50 (86 tablets)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e5.\u003cspan style=\"font-size: 14.0px;\"\u003e Applicable tubes: 2A3, 300B, EL156, KT88, FU13 (for single and two tubes)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e6. Weight: 2.8kg\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch1 style=\"text-align: center;\"\u003e\u003cimg alt=\"WHFT-A300B(out trs3)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1vGd2LXXXXXXhXXXXq6xXFXXXk\/224400538\/HTB1vGd2LXXXXXXhXXXXq6xXFXXXk.jpg?size=71893\u0026amp;height=525\u0026amp;width=700\u0026amp;hash=8a0c9fb2f40c9c4c359de5eaaa709363\"\u003e\u003c\/h1\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WHFT-A300B(out trs1)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Zf81LXXXXXadXXXXq6xXFXXXs\/224400538\/HTB1Zf81LXXXXXadXXXXq6xXFXXXs.jpg?size=72680\u0026amp;height=525\u0026amp;width=700\u0026amp;hash=f0a010725c5b55f6fac0622f3f7d1fe0\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WHFT-A300B(out trs2)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1LyhDLXXXXXaeXVXXq6xXFXXXN\/224400538\/HTB1LyhDLXXXXXaeXVXXq6xXFXXXN.jpg?size=86781\u0026amp;height=525\u0026amp;width=700\u0026amp;hash=8808909e54831deefcaabaa119eba0bb\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WHFT-A300B(out trs)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB13ZhFLXXXXXcZXFXXq6xXFXXXA\/224400538\/HTB13ZhFLXXXXXcZXFXXq6xXFXXXA.jpg?size=91056\u0026amp;height=525\u0026amp;width=700\u0026amp;hash=42918754b44a7fee61313106116e34e1\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"3.5K ohm","offer_id":239314960409,"sku":"WHFT-A300B-OT-3.5k","price":54.9,"currency_code":"USD","in_stock":true},{"title":"2.5K ohm","offer_id":239315025945,"sku":"WHFT-A300B-OT-2.5k","price":54.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/27a3e9c39356b3190b38af67e46e4336.jpg?v=1571438876"},{"product_id":"iwistao-10w-tube-amp-output-transformer-z11-single-ended-silicon-for-tubes-6p14-el34-el84-6p3p-kt88","title":"IWISTAO 10W Tube Amplifier Output Transformer Z11 Single-ended for Tube 6P14 EL34 EL84 6P3P KT88","description":"\u003cdiv style=\"text-align: center;\"\u003e\n\u003cspan style=\"font-size: 18px; text-align: center;\"\u003eIWISTAO 10W \u003c\/span\u003e\u003cspan style=\"font-size: 18px; text-align: center;\"\u003eTube Amplifier Output Transformer Z11 Single-ended Silicon Steel EI Transformers 20H 0-4-8ohm for Tubes 6P14 EL34 EL84 6P3P KT88 Audio HIFI DIY \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; text-align: center;\"\u003e\u003cbr\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px; text-align: center;\"\u003eModel No: WVTO-OT10W\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eThe output transformer adopt core of Japan Z11 chip (0.35EI) dedicated audio chip, high quality oxygen-free copper wire coil package, and use pure pulp insulating paper between each insulated layer. Production process of output transformer defying cumbersome, adopt 2 out 3 clips or 4 out 5 clips method with hierarchical segmentation, placing paper with group by group, also with processes of meticulous, careful winding, vacuum impregnation, these lead to the transformer has good insulation and moisture resistant, transparent sound, sweet warm and mellow, excellent solution and clarity, as well as nice shape.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eIt is a better choice to tube amplifier audiophiles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB18tEpQpXXXXXMapXXq6xXFXXX3\/224400538\/HTB18tEpQpXXXXXMapXXq6xXFXXX3.jpg?size=249565\u0026amp;height=700\u0026amp;width=700\u0026amp;hash=2a05d23d62e9b62d2952e538ec8e99b0\" alt=\"WVTO-OT10W\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eThere are 2 primary impedance, one is 5.2k-6k ohms, the other is 3.5k ohms, please specify with leave message, default as 3.5k ohms.\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1MvBVLXXXXXXAXpXXq6xXFXXXG\/224400538\/HTB1MvBVLXXXXXXAXpXXq6xXFXXXG.jpg?size=90456\u0026amp;height=700\u0026amp;width=700\u0026amp;hash=2d26e882e57161abd3b87d379e0473bd\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1ZSR2LXXXXXXOXXXXq6xXFXXXJ\/224400538\/HTB1ZSR2LXXXXXXOXXXXq6xXFXXXJ.jpg?size=87479\u0026amp;height=700\u0026amp;width=700\u0026amp;hash=3e4b525083a33f6bdf09b86b777bda51\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePS: A stereo tube amplifier need 2 pcs output transformer.\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePower: 10W (20Hz)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eFrequency Response: 20Hz-40KHz, -3dB\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePrimary Impedance: 5.2k-6K, 2.5k or 3.5K ohm.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePrimary copper resistance: about 400 (B-P),\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSecondary: 0-4-8 ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eCore Size: EI66 stack thickness 35mm,\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eMaterial: Japan imports z11 chip\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eInductance: 38H (test equipment CHROMA3302, frequency 1K)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePrimary maximum allowed DC current: 100mA\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e12. Applicable for tube 6P14 (el34, el84,6p3p, KT88),or others.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eDimensions: Length 68MM, width 65MM, high 60MM\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eCentral distance of fixing hole: 80mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eWeight: 1kg\/pc\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB157dRLXXXXXbpXpXXq6xXFXXXG\/224400538\/HTB157dRLXXXXXbpXpXXq6xXFXXXG.jpg?size=69372\u0026amp;height=513\u0026amp;width=700\u0026amp;hash=40316891c174567c3e78dc91c52096f8\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"3.5K ohm","offer_id":239494496281,"sku":"WVTO-OT10W-3.5K","price":22.9,"currency_code":"USD","in_stock":true},{"title":"5K ohm","offer_id":239494529049,"sku":"WVTO-OT10W-5K","price":22.9,"currency_code":"USD","in_stock":true},{"title":"2.5k ohm","offer_id":32207441952883,"sku":"WVTO-OT10W-2.5K","price":22.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO_10W_Tube_Amplifier_Output_Transformer_Z11_Single-ended_for_Tube_6P14_EL34_EL84_6P3P_KT88.jpg?v=1757574450"},{"product_id":"iwistao-tube-amplifier-output-transformer-pull-push-z11-silicon-steel-ei-for-pull-push-tube-amp-40w-audio-hifi-diy","title":"IWISTAO Tube Amplifier Output Transformer Pull-Push 40W Z11 Silicon Steel EI Tube Amp HIFI DIY","description":"\u003ch1 style=\"text-align: center;\"\u003e\n\u003cspan style=\"font-size: 18px;\"\u003eIWISTAO \u003c\/span\u003e\u003cspan style=\"text-align: center; font-size: 18px;\"\u003eTube Amplifier Output Transformer Pull-Push Z11 Silicon Steel EI For Pull-push Tube Amp Power 40W Audio HIFI DIY\u003c\/span\u003e\u003cspan style=\"text-align: center; font-family: arial, sans-serif; font-size: 18px;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e \u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003e\u003cspan style=\"text-align: center; font-family: arial, sans-serif;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e\u003cbr\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"text-align: center; font-family: arial, sans-serif;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eModel No: WVTRPP-40W\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eAdopt Z11 silicon annealing 0.35EI dedicated audio chips. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e1. High quality thick nylon frame and high quality Japan Z11 annealed silicon steel flux H50.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e2. Effectively isolated electromagnetic interference with iron paint shell.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB19uNJLXXXXXbaXFXXq6xXFXXXN\/224400538\/HTB19uNJLXXXXXbaXFXXq6xXFXXXN.jpg?size=138383\u0026amp;height=800\u0026amp;width=806\u0026amp;hash=069958e5f56c6a5beadd7288697bdca5\" alt=\"WVTRPP-OT40W(1)\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eCore Size: 25.3MM * 45MM\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eWinding way: 3 folder 2 fragment wound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eFrequency response: 35HZ -20KHZ\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eInductance (P1-P2): L\u0026gt; = 80H 100HZ\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eDC resistance (P1-P2) about: 350 ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePrimary Impedance: 8K ohm (2 options, please select the button according to requirements)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eNo super limear tap\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eWith \u003cspan\u003esuper limear tap\u003c\/span\u003e \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSecondary Impedance: 0-4-8 ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eInstallation Center Pitch: wide pitch 67MM, 51MM deep distance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eDimensions: width 64 * high 77 * thick 87MM\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eInsulation treatment: immersion insulating paint\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eCore material: Imported Japan Z11 0.35MM thick insulation annealed sheet stack thickness 45MM, outsourcing black Mara plastic\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eShielding way: side cover shield\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eWeight: 1.6KG\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1AllILXXXXXbKXFXXq6xXFXXX1\/224400538\/HTB1AllILXXXXXbKXFXXq6xXFXXX1.jpg?size=112612\u0026amp;height=800\u0026amp;width=807\u0026amp;hash=b84a62ed8818dbcfbf886f23ec44031b\" alt=\"WVTRPP-OT40W(1l)\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1nONVLXXXXXXxXpXXq6xXFXXXF\/224400538\/HTB1nONVLXXXXXXxXpXXq6xXFXXXF.jpg?size=114585\u0026amp;height=800\u0026amp;width=806\u0026amp;hash=c3a90ebadee262927f9e346dcb73d804\" alt=\"WVTRPP-OT40W(2l)\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1L4FzLXXXXXclXVXXq6xXFXXXe\/224400538\/HTB1L4FzLXXXXXclXVXXq6xXFXXXe.jpg?size=130012\u0026amp;height=800\u0026amp;width=795\u0026amp;hash=3caf89adeceb38898b88a80a21783549\" alt=\"WVTRPP-OT40W(3l)\"\u003e\u003c\/p\u003e\n\u003ch1 style=\"text-align: center;\"\u003e \u003c\/h1\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"With Ultra-linear tap","offer_id":9282100134003,"sku":"WVTRPP-40W-L","price":53.9,"currency_code":"USD","in_stock":true},{"title":"No Ultra-linear tap","offer_id":239700443161,"sku":"WVTRPP-40W-N","price":45.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO_Tube_Amplifier_Output_Transformer_Pull-Push_40W_Z11_Silicon_Steel_EI_Tube_Amp_HIFI_DIY.jpg?v=1757491396"},{"product_id":"iwistao-20w-output-transformer-tube-amp-z11-single-ended-silicon-steel-ei-transformers-power-audio-hifi-for-fu7-300b-6p3p-kt88-1","title":"IWISTAO 20W Output Transformer Tube Amp Z11 Single-ended Silicon Steel EI for FU7\/300B\/6P3P\/KT88","description":"\u003ch1 style=\"white-space: normal; padding: 5px; text-align: center;\"\u003e\n\u003cspan style=\"font-size: 18px; font-weight: normal; color: #333333; font-family: Arial, Verdana, sans-serif;\"\u003eIWISTAO \u003c\/span\u003e\u003cspan style=\"font-size: 18px;\"\u003e20W Output Transformer Tube Amp Z11 Single-ended Silicon Steel EI Transformers Power Audio HIFI for FU7\/300B\/6P3P\/KT88\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp style=\"text-align: left;\"\u003eModel No:  WVTR-OT20W\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cbr\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003ePlease note:\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e \u003cspan style=\"font-size: 16px;\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e1. Horizontal 3.5k --- 3.5K input with Horizontal Installation\u003cbr\u003e 2. Horizontal 5k ---  5K input with Horizontal Installation\u003cbr\u003e 3. Vertical 3.5k --- 3.5K input with Vertical Installation\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e Plesae select the button of the page according your requirements\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e Horizontal Installation\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT20W(l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1RelXRXXXXXaIXFXXq6xXFXXXd\/224400538\/HTB1RelXRXXXXXaIXFXXq6xXFXXXd.jpg?size=691889\u0026amp;height=800\u0026amp;width=809\u0026amp;hash=c17c1d2b4e41156087cead447043cc10\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT20W(2l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB18pg8QVXXXXblXFXXq6xXFXXX3\/224400538\/HTB18pg8QVXXXXblXFXXq6xXFXXX3.jpg?size=637659\u0026amp;height=800\u0026amp;width=814\u0026amp;hash=b08cbd08348265ed79aa490070d33b09\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT20W(3l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Xb0aRXXXXXXYXFXXq6xXFXXXC\/224400538\/HTB1Xb0aRXXXXXXYXFXXq6xXFXXXC.jpg?size=567382\u0026amp;height=686\u0026amp;width=800\u0026amp;hash=d6b3c07d9250af9d052f599981a11346\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT20W(l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1RelXRXXXXXaIXFXXq6xXFXXXd\/224400538\/HTB1RelXRXXXXXaIXFXXq6xXFXXXd.jpg?size=691889\u0026amp;height=800\u0026amp;width=809\u0026amp;hash=c17c1d2b4e41156087cead447043cc10\"\u003e\u003c\/p\u003e\n\u003ch2\u003e \u003c\/h2\u003e\n\u003ch2\u003eVertical Installation\u003c\/h2\u003e\n\u003ch2 style=\"text-align: center;\"\u003e \u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT20W(V4l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1hwU_QVXXXXalXFXXq6xXFXXXk\/224400538\/HTB1hwU_QVXXXXalXFXXq6xXFXXXk.jpg?size=295315\u0026amp;height=779\u0026amp;width=800\u0026amp;hash=eb2358cef647dd6b10af0223c6133d96\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eFeatures\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e1. Used cold-rolled non-oriented high silicon (H10\/0.35EI) dedicated audio chip by Nippon Steel Company.\u003cbr\u003e 2. High-quality oxygen-free copper wire wrap wire, layered segments, each insulated with insulating paper, carefully wound.\u003cbr\u003e 3. Used advanced dipping process, so that the transformer has good insulation and moisture resistance.\u003cbr\u003e 4. Wiring using 20cm long leads, more convenient to use.\u003cbr\u003e 5. Sound transparent innocence, sweet tone warm and rich, an excellent solution clarity intensity.\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e \u003cbr\u003e  \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cbr\u003e \u003cspan style=\"font-size: 18px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e1. Power: 20W\u003cbr\u003e 2. Frequency Response: 30z-30KHz (-2dB)\u003cbr\u003e 3. Core Specifications: EI96X45 , core section 32mm X 45mm\u003cbr\u003e 5. Primary Impedance: 3.5k or 5K,\u003cbr\u003e 6. Secondary: 0-4-8\u003cbr\u003e 7. Primary Inductance: \u0026gt;65H\u003cbr\u003e 8. Primary DC resistance: 400\u003cbr\u003e 9. The primary current: 165MA\u003cbr\u003e 10. Weight: 2.8kg\/pc\u003c\/span\u003e\u003cbr\u003e \u003cspan style=\"font-size: 14px;\"\u003e11. Dimension(W * H *D): 98mm * 82mm * 85\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eRecomend tube amplifier circuit\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cimg alt=\"CIRCUIT\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Go7PQVXXXXaZaXXXq6xXFXXXT\/224400538\/HTB1Go7PQVXXXXaZaXXXq6xXFXXXT.jpg?size=132600\u0026amp;height=640\u0026amp;width=610\u0026amp;hash=35d0bd3538082646c5be905cf172e155\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp\u003eHow to connect wires with tube and output\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e\u003cu\u003e\u003cspan style=\"line-height: 18px; color: #ff0000;\"\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003eJust as an example only, you need confirm it according your tube for power amplification.\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial; text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial; text-align: center;\"\u003e\u003cimg alt=\"ot transformer\" height=\"448\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1omp2LXXXXXXrXXXXq6xXFXXXE\/224400538\/HTB1omp2LXXXXXXrXXXXq6xXFXXXE.jpg?size=56815\u0026amp;height=455\u0026amp;width=595\u0026amp;hash=ae31de662b312cca8d58647612dac207\" style=\"border: none;\" width=\"586\"\u003e\u003c\/p\u003e\n\u003cdiv style=\"clear: both;\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Vertical 3.5K","offer_id":40617209725043,"sku":"WVTR-OT20W-H3.5K","price":57.9,"currency_code":"USD","in_stock":true},{"title":"Vertical 5k","offer_id":40617209757811,"sku":"WVTR-OT20W-H3.5K-2","price":57.9,"currency_code":"USD","in_stock":true},{"title":"Horizontal 3.5k","offer_id":40617209790579,"sku":"WVTR-OT20W-H3.5K-3","price":57.9,"currency_code":"USD","in_stock":true},{"title":"Horizontal 5k","offer_id":40617209823347,"sku":"WVTR-OT20W-H3.5K-4","price":57.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-20W-Output-Transformer-Tube-Amp-Z11-Single-ended-Silicon-Steel-EI-Transformers-Power-Audio-HIFI_f2afa955-722f-46d2-9fdc-66e07b4bfa01.jpg?v=1571438876"},{"product_id":"tube-amplifier-output-transformer-30w-pull-push-z11-silicon-steel-ei-for-pull-push-tube-amplifier-no-linear-tap-hifi-diy","title":"IWISTAO Tube Amplifier Output Transformer 30W Pull-Push Z11 EI For Pull-push Tube Amp No Linear Tap","description":"\u003ch1 style=\"text-align: center;\"\u003e\n\u003cspan style=\"font-size: 18px;\"\u003e IWISTAO Tube Amplifier Output Transformer Pull-Push Z11 Silicon Steel EI For Pull-push Tube Amp Power 30W  No Linear Tap Audio HIFI DIY\u003cspan style=\"font-family: Arial, sans-serif;\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e  \u003c\/h1\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003eModel No: WVTRPP-30W\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eAdopt Z11 silicon annealing 0.35EI dedicated audio chips. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e1.    High quality thick nylon frame and high quality Japan Z11 annealed silicon steel.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e2.    Effectively isolated electromagnetic interference with iron paint shell.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTRPP-OT30W800x800)\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1.1g3p_tYBeNjy1Xdq6xXyVXaW.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eCore Size: 25.3MM * 45MM\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eWinding way: 3 folder 2 fragment wound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eFrequency response: 30HZ -20KHZ\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eInductance (P1-P2): L\u0026gt; = 40H @ 500H\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003e Primary Impedance: 8K ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eSecondary Impedance: 0-4-8 ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eInstallation Center Pitch: wide pitch 67MM, 51MM deep distance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eDimensions: width 64 * high 77 * thick 77MM\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eInsulation treatment: immersion insulating paint\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eCore material: Imported Japan Z11 0.35MM thick insulation annealed sheet stack thickness 35MM, outsourcing black Mara plastic\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eShielding way: side cover shield\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eWeight: 1.3KG\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch1 style=\"text-align: center;\"\u003e\n\u003cimg alt=\"WVTRPP-OT30W800x800)1\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1tgqFpVOWBuNjy0Fiq6xFxVXaG.jpg\"\u003e\u003cimg alt=\"WVTRPP-OT30W800x800)2\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1OzMHp_JYBeNjy1zeq6yhzVXaA.jpg\"\u003e\u003cimg alt=\"WVTRPP-OT30W800x800)3\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1oTApe5MnBKNjSZFoq6zOSFXaD.jpg\"\u003e\n\u003c\/h1\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":8633522028659,"sku":"WVTRPP-30W","price":42.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/912047ee4573308569bb36cc90115a9c.jpg?v=1571438882"},{"product_id":"tube-amplifier-output-transformer-50w-pull-push-z11-silicon-steel-ei-for-pull-push-tube-amp-power-audio-hifi-diy","title":"IWISTAO Tube Amplifier Output Transformer 50W Pull-Push Z11 For Pull-push Tube Amp HIFI DIY","description":"\u003ch1 style=\"text-align: center;\"\u003e\n\u003cspan style=\"font-size: 18px;\"\u003eIWISTAO Tube Amplifier Output Transformer Pull-Push Z11 Silicon Steel EI For Pull-push Tube Amp Power 50W Audio HIFI DIY\u003c\/span\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003ch2 style=\"padding: 5px;\"\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003e\u003cspan style=\"font-size: 18px;\"\u003eModel No: WVTRPP-50W\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eAdopt Z11 silicon annealing 0.35EI dedicated audio chips. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e1.    High quality thick nylon frame and high quality Japan Z11 annealed silicon steel \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e2.    Effectively isolated electromagnetic interference with iron paint shell.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1klTTpY1YBuNjSszeq6yblFXaC.jpg\" alt=\"WVTRPP-50W(800x800l)\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eCore Size: 28MM * 50MM\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eWinding way: 3 folder 2 fragment woun\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003ePrimary Impedance: 5K ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eSecondary Impedance: 0-4-8 ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eInstallation Center Pitch: wide pitch 60MM, 78MM deep distance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eDimensions: width 72 * high 86 * thick 95MM\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eInsulation treatment: immersion insulating paint\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eCore material: Imported Japan Z11 0.35MM thick insulation annealed sheet stack thickness 50MM, outsourcing black Mara plastic\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eShielding way: side cover shield\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eWeight: 2.35KG\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch1 style=\"text-align: center;\"\u003e\n\u003cimg src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1EenppYSYBuNjSspiq6xNzpXaY.jpg\" alt=\"WVTRPP-50W(800x800l)1\"\u003e\u003cimg src=\"http:\/\/ae01.alicdn.com\/kf\/HTB189pmqmtYBeNjSspkq6zU8VXai.jpg\" alt=\"WVTRPP-50W(800x800l)2\"\u003e\u003cimg src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1li8ifnqWBKNjSZFAq6ynSpXaC.jpg\" alt=\"WVTRPP-50W(800x800l)4\"\u003e\n\u003c\/h1\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":8634068205683,"sku":"WVTRPP-50W-1","price":56.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/e8c9762e95e288776ff50dd46a9db335.jpg?v=1571438882"},{"product_id":"iwistao-50w-output-transformer-single-end-z11-1-pair-for-tube-813-fu-13-211-vt-4-845-vt43-gm-70","title":"IWISTAO 50W Output Transformer Single-end Z11 1 Pair for Tube 813\/FU-13 211\/VT-4 845\/VT43 GM-70","description":"\u003ch1 style=\"text-align: center;\"\u003eIWISTAO 50W Output Transformer Single-end Z11 1 Pair for Tube 813\/FU-13 211\/VT-4 845\/VT43 GM-70\u003c\/h1\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003c\/div\u003e\n\u003ch2 style=\"text-align: left;\"\u003eModel No: WVT-OT50W(813)\u003c\/h2\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIt is made of Japan imported Z11 silicon steel sheet and pure copper wire， and then the transformer will be fixed in a shield cover with glued.\u003c\/p\u003e\n\u003cp\u003eApplication for single-end  tube 813\/FU-13 211\/VT-4 845\/VT43 GM-70 power output;\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/813_OT.jpg?v=1525921096\" alt=\"813 output transformer\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/813_OT3.jpg?v=1525921139\" alt=\"813 output transformer without glued\"\u003e\u003c\/p\u003e\n\u003cp\u003eSpecification\u003c\/p\u003e\n\u003cp\u003e1.Power: 50W (30Hz);\u003c\/p\u003e\n\u003cp\u003e2. Primary impedance: 9KΩ:\u003c\/p\u003e\n\u003cp\u003e3. Secondary impedance: 0-4Ω-8Ω;\u003c\/p\u003e\n\u003cp\u003e4. Current: primary maximum IpMax: 210mA;\u003c\/p\u003e\n\u003cp\u003e5. Frequency response: 6Hz-72kHz -3dB (845 measured on the road, 0dB\/1kHz\/8Ω);\u003c\/p\u003e\n\u003cp\u003e6. Feedback: If nee independent feedback winding please specify when ordering;\u003c\/p\u003e\n\u003cp\u003e7. Weight: about 12kg\/pair (include two side covers)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":8654792491123,"sku":"10","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/813_OT.jpg?v=1571438882"},{"product_id":"tube-amplifier-output-transformer-20w-pull-push-z11-silicon-steel-ei-for-pull-push-tube-amplifier-power-audio-hifi-diy","title":"IWISTAO Tube Amplifier Output Transformer 20W Pull-Push Z11 Silicon Steel EI For Pull-push Audio","description":"\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 18px;\"\u003eIWISTAO Tube Amplifier Output Transformer Pull-Push Z11 Silicon Steel EI For Pull-push Tube Amp Power 20W Audio HIFI DIY\u003c\/span\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cbr\u003e  \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cbr\u003e Model No: WVTRPP-20W\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eAdopt Z11 silicon annealing 0.35EI dedicated audio chips. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e1.    High quality thick nylon frame and high quality Japan Z11 annealed silicon steel flux H50.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e2.    Effectively isolated electromagnetic interference with iron paint shell.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eCore Size: 22MM * 44MM\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eWinding way: 3 folder 2 fragment wound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eFrequency response: 30HZ -20KHZ\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eInductance (P1-P2): L\u0026gt; = 80H @ 100HZ\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003e Primary Impedance: 6K ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eSecondary Impedance: 0-4-8 ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eInstallation Center Pitch: 80mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eDimensions: width 86 * high 58 * thick 79MM\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eInsulation treatment: immersion insulating paint\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eCore material: Imported Japan Z11 0.35MM thick insulation annealed sheet stack thickness 45MM, outsourcing black Mara plastic\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eShielding way: side cover shield\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eWeight: 1.3KG\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTRPP-20W1l\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB17D.glIyYBuNkSnfoq6AWgVXap.jpg\"\u003e\u003cimg alt=\"WVTRPP-20W2l\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1A2wFlMKTBuNkSne1q6yJoXXah.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"With Ultra-linear Tap","offer_id":9550089781363,"sku":"WVTRPP-20W-UL","price":37.9,"currency_code":"USD","in_stock":true},{"title":"No Ultra-linear Tap","offer_id":9549811384435,"sku":"WVTRPP-20W-NUL","price":29.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTRPP-20W_1.jpg?v=1571438882"},{"product_id":"iwistao-20w-tube-amplifier-output-transformer-pull-push-z11-silicon-steel-ei-for-tube-amp-power-audio-horizontal-installation","title":"IWISTAO 20W Tube Amplifier Output Transformer Pull-Push Z11 Silicon Steel Horizontal Installation","description":"\u003ch1 style=\"text-align: center;\"\u003eIWISTAO 20W Tube Amplifier Output Transformer Pull-Push Z11 Silicon Steel EI For Pull-push Tube Amp Power Horizontal installationAudio HIFI DIY\u003cspan style=\"font-family: Arial, sans-serif;\"\u003e \u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cbr\u003e  \n\u003ch2 style=\"padding: 5px;\"\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003eModel No: WVTRPP-20WNS\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eAdopt Z11 silicon annealing 0.35EI dedicated audio chips. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e1.    High quality thick nylon frame and high quality Japan Z11 annealed silicon steel.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e2.    Effectively isolated electromagnetic interference.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eCore Size: 22MM * 44MM\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eWinding way: 3 folder 2 fragment wound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eFrequency response: 30HZ -20KHZ\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eInductance (P1-P2): L\u0026gt; = 50H @ 1000HZ\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003e Primary Impedance: 10K ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eSecondary Impedance: 0-4-8 ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eInstallation Center Pitch: 80mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 14px;\"\u003eDimensions: width 66 * high 55 * thick 72MM \u003c\/span\u003e(The outlet is on the same side, convenient to change to horizontal installation)\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eInsulation treatment: immersion insulating paint\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eCore material: Imported Japan Z11 0.35MM thick insulation annealed sheet stack thickness 44MM, outsourcing black Mara plasti\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eWeight: 1.3KG\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTRPP-20WNS(1)_l\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1h1Weuf5TBuNjSspcq6znGFXaV.jpg\"\u003e\u003cimg alt=\"WVTRPP-20WNS(2)\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1MtWxueySBuNjy1zdq6xPxFXaW.jpg\"\u003e\u003cimg alt=\"WVTRPP-20WNS(3)\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1_5W9g8smBKNjSZFsq6yXSVXaO.jpg\"\u003e\u003cimg alt=\"WVTRPP-20WNS\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1pNgSgIIrBKNjSZK9q6ygoVXaN.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"clear: both;\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"With Ultra-linear Tap","offer_id":9559662919795,"sku":"WVTRPP-20WNS-WUL","price":38.9,"currency_code":"USD","in_stock":true},{"title":"No Ultra-linear Tap","offer_id":9559470997619,"sku":"WVTRPP-20WNS-NUL","price":31.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-20W-Tube-Amplifier-Output-Transformer-Pull-Push-Z11-Silicon-Steel-EI-For-Tube-Amp-Power_e6048304-d206-4e5c-88fe-cd71bb9fd3a2.jpg?v=1571438882"},{"product_id":"iwistao-tube-amplifier-output-transformer-100w-pull-push-z11-silicon-steel-ei114-50-pull-push-tube-amp-power-audio-hifi-diy","title":"IWISTAO Tube Amplifier Output Transformer 100W Pull-Push Z11 Silicon Steel EI114*50 for KT88","description":"\u003ch1 style=\"text-align: center;\"\u003e\n\u003cspan style=\"font-size: 18px;\"\u003eIWISTAO Tube Amplifier  100W Output Transformer Pull-Push Z11 Silicon Steel EI114*50  For Pull-push Tube Amp Power FOR KT88 Audio HIFI DIY\u003cspan style=\"font-family: Arial, sans-serif;\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e  \u003c\/h1\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 18px;\"\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003eModel No: WVTRPP-100W\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eAdopt Z11 silicon annealing 0.35EI dedicated audio chips. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e1.    High quality thick nylon frame and high quality Japan Z11 annealed silicon steel flux H50.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e2.    Effectively isolated electromagnetic interference with iron paint shell.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eCore Size: 38MM * 50MM\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eWinding way: 3 folder 2 fragment wound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eFrequency response: 30HZ -30KHZ\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eInductance (P1-P2): L\u0026gt; = 56H @ 100HZ\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003e Primary Impedance: 5K ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eSecondary Impedance: 0-4-8 ohm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eInsulation treatment: immersion insulating paint\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eCore material: Imported Japan Z11 0.35MM thick insulation annealed sheet stack thickness 50mm, outsourcing black Mara plastic\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eShielding way: side cover shield\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eWeight: 4.6KG\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1.8R7ukKWBuNjy1zjq6AOypXau.jpg\" alt=\"WVTRPP-100W(1)l\"\u003e\u003cimg src=\"http:\/\/ae01.alicdn.com\/kf\/HTB12pXNl_XYBeNkHFrdq6AiuVXaM.jpg\" alt=\"WVTRPP-100W(2)\"\u003e\u003cimg src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1BCiFukyWBuNjy0Fpq6yssXXaA.jpg\" alt=\"WVTRPP-100W\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003eWire Connection Diagram\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eOnly for you information.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg style=\"text-align: center; font-size: 12px;\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1LS9Lub5YBuNjSspoq6zeNFXaD.jpg\" alt=\"Wire Connection Diagram of UL Transformer_\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"font-size: 13.3333px;\"\u003e\u003cu\u003e\u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003eNOTE: \u003c\/span\u003e\u003c\/strong\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp style=\"font-size: 13.3333px;\"\u003e\u003cu\u003e\u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003ewe provide you some items and components for your DIY. If you have enough capablities for circuit-reading, electronical components knowledge, assembling, soldering and problem-solving, you can buy them to enjoy DIY. If not, please don't buy them. We only provide limit technology support in this individial items itself.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cdiv\u003e \u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":9561596199027,"sku":"WVTRPP-100W","price":118.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-Tube-Amplifier-Output-Transformer-100W-Pull-Push-Z11-Silicon-Steel-EI114-50-Pull-push-Tube.jpg?v=1571438882"},{"product_id":"1pc-output-transformer-0-62ohm-0-5w-for-tube-headphone-amplifier-import-z11-single-ended-silicon-steel-ei-hifi-diy","title":"IWISTAO 1pc Output Transformer 62ohm 0.5W for Tube Headphone Amp Z11 Single-ended Silicon Steel","description":"\u003ch1 style=\"padding: 5.0px; text-align: center;\"\u003e\n\u003cspan style=\"font-size: 18.0px;\"\u003eIWISTAO 1pc Output Transformer 0-62 ohm 0.5W for Tube Headphone Amplifier Import Z11 Single-ended Silicon Steel \u003c\/span\u003e \u003c\/h1\u003e\n\u003ch1 style=\"padding: 5px;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eModel No: WVHTR-OT0.5\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003eNote: Please buy 2 pcs output transformers if you need use it to make a stereo tube headphone amplifier.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e\u003cimg alt=\"WVHTR-OT0.5_l1\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1a4eUg9YTBKNjSZKbq6xJ8pXal.jpg\"\u003e\u003cimg alt=\"WVHTR-OT0.5_l\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1IrJSuA9WBuNjSspeq6yz5VXav.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePower: 0.5W \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eFrequency Response: 40Hz-20KH\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePrimary Impedance: 5K ohm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSecondary: 0-62 ohm  \u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003e(\u003c\/strong\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eCan customize other output impedance values, please contact us)\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eCore Size: 19*24mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eMaterial: Japan imports Z11 chip\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eInductance: \u0026gt;=55H (20Hz, 100MV, test equipment CHROMA3302-LCR\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eCentre distance of fix hole: 73mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDimensions: Height 51mm, feet wide 58mm, Coil wide 58mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eWeight: 0.55kg\/pc\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":9606126600307,"sku":"WVHTR-OT0.5-1","price":22.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVHTR-OT0.5.jpg?v=1571438883"},{"product_id":"iwistao-7w-output-transformer-tube-amp-z11-single-ended-silicon-steel-ei-transformers-power-audio-hifi-for-fu7-300b-6p3p-kt88","title":"IWISTAO 7W Output Transformer Tube Amp Z11 Single-ended Silicon Steel Audio for FU7\/300B\/6P3P\/KT88","description":"\u003ch1 style=\"padding: 5px; text-align: center;\"\u003eIWISTAO 7\u003cspan style=\"color: #333333; font-family: Arial, Verdana, sans-serif;\"\u003eW\u003c\/span\u003e Output Transformer Tube Amp Z11 Single-ended Silicon Steel EI Transfor\u003cspan style=\"color: #333333; font-family: Arial, Verdana, sans-serif;\"\u003emers Power \u003c\/span\u003eAudio HIFI fo\u003cspan style=\"color: #333333; font-family: Arial, Verdana, sans-serif;\"\u003er \u003c\/span\u003e6P3P\/FU19\/6L6\u003c\/h1\u003e\n\u003ch2\u003e \u003c\/h2\u003e\nModel No: WVTR-OT7W\n\u003ch2\u003e\u003cspan style=\"font-family: tahoma, geneva, sans-serif;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eFeatures\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cbr\u003e \u003cspan style=\"font-size: 14px;\"\u003e1.    High quality thick nylon frame and high quality Japan Z11 annealed silicon steel.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e2.    Effectively isolated electromagnetic interference.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14px;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e1. Core Size: 22mm * 35mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e2. \u003c\/span\u003e\u003cspan style=\"font-size: 14px;\"\u003eWinding way: 3 folder 2 fragment wound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e3. Frequency response: 35HZ -20KHZ\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e4. Inductance: L\u0026gt; = 18H @ 1000H\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e5. Primary Impedance: 3.5K ohm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e6. Secondary Impedance: 0-4-8 ohm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e7. Installation Center Pitch: 45mm * 50mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e8. \u003c\/span\u003e\u003cspan style=\"font-size: 14px;\"\u003eDimensions: width 68 * high 55 * thick 75MM (The outlet is on the same side, convenient to change to horizontal installation)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e9. Insulation treatment: immersion insulating paint\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e10. \u003c\/span\u003e\u003cspan style=\"font-size: 14px;\"\u003eCore material: Imported Japan Z11 0.35MM thick insulation annealed sheet stack thickness 35MM, outsourcing black Mara plasti\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e11. Weight: 1.03KG\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp\u003eHow to connect wires with tube and output\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial;\"\u003e\u003cu\u003e\u003cspan style=\"line-height: 18px; color: #ff0000;\"\u003e\u003cspan style=\"line-height: 21px; font-size: 14px;\"\u003eJust as an example only, you need confirm it according your tube for power amplification.\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial; text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"margin: 0px; padding: 0px; word-wrap: break-word; color: #000000; font-family: arial; text-align: center;\"\u003e\u003cimg alt=\"ot transformer\" height=\"448\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1omp2LXXXXXXrXXXXq6xXFXXXE\/224400538\/HTB1omp2LXXXXXXrXXXXq6xXFXXXE.jpg?size=56815\u0026amp;height=455\u0026amp;width=595\u0026amp;hash=ae31de662b312cca8d58647612dac207\" style=\"border: none;\" width=\"586\"\u003e\u003c\/p\u003e\n\u003cdiv style=\"clear: both;\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":9608626864243,"sku":"","price":22.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-7W-Output-Transformer-Tube-Amp-Z11-Single-ended-Silicon-Steel-EI-Transformers-Power-Audio-HIFI.jpg?v=1571438883"},{"product_id":"2a3-output-transformer-c-type-british-amorphous-8c-advanced-core-pr-2-5k-se-0-4-8-ohms-for-vacuum-tube-2a3","title":"IWISTAO 2A3 Output Transformer C Type Single-ended British Amorphous 8C Core Pr 2.5K Se 0-4-8","description":"\u003ch1 style=\"text-align: center;\"\u003e2A3 Output Transformer C Type Single-ended British Amorphous 8C Advanced Core Pr 2.5K Se 0-4-8 ohms\u003c\/h1\u003e\n\u003cp\u003e\u003cbr\u003e Model No: WVTR-OT2A3(8C)\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eVacuum tube 2A3 is a mysterious direct heat tube. Many audiophile use this tube as the end of the life. Because of its linearity and internal resistance, everything is not inferior to the famous 300B tube except the power. More tube audiophile do not hesitate to purchase an expensive British Rhode full-range speaker, or high-sensitivity horn speaker, etc. in order to complement the weaknesses of low power only. The reason is very simple, 2A3 is easier than 300B to make a good voice, because 2A3 drive signal is only need 40V, lower the threshold for the boost signal of preamplifier, and the output load impedance is only 2.5K ohms, and then the output design is also relatively easy to 300B.  We special design the output transformer for the vacuum tube 2A3 now with C type structure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eIt is a better choice to tube amplifier audiophiles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WVTR-OT2A3_8C_2.jpg?v=1556696514\" alt=\"IWISTAO 2A3 Output Transformer C Type Single-ended British Amorphous 8C Advanced Core Pr 2.5K Se 0-4-8\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WVTR-OT2A3_8C_5.jpg?v=1556696570\" alt=\"2A3 Output Transformer C Type Single-ended British Amorphous 8C Advanced Core Pr 2.5K Se 0-4-8(1)\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WVTR-OT2A3_8C_4.jpg?v=1556696620\" alt=\"2A3 Output Transformer C Type Single-ended British Amorphous 8C Advanced Core Pr 2.5K Se 0-4-8(2)\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WVTR-OT2A3_8C.jpg?v=1556696657\" alt=\"2A3 Output Transformer C Type Single-ended British Amorphous 8C Advanced Core Pr 2.5K Se 0-4-8(4)\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WVTR-OT2A3_8C_1.jpg?v=1556696686\" alt=\"2A3 Output Transformer C Type Single-ended British Amorphous 8C Advanced Core Pr 2.5K Se 0-4-8 (6)\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePS: A stereo tube amplifier need 2 pcs output transformers.\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e1. Power: 3.5W\u003c\/p\u003e\n\u003cp\u003e2. Material: British amorphous 8C advanced core\u003c\/p\u003e\n\u003cp\u003e3. Primary impedance: 2.5k ohms\u003c\/p\u003e\n\u003cp\u003e4. Secondary impedance: 0-4-8 ohms (16 ohm output can be ordered)\u003c\/p\u003e\n\u003cp\u003e5 Inductance: 11H\u003c\/p\u003e\n\u003cp\u003e6. Bandwidth: 28HZ- 45KHZ(-1DB)\u003c\/p\u003e\n\u003cp\u003e7. Size(W*H*D): 88*75*95mm\u003c\/p\u003e\n\u003cp\u003e8. Weight: 1.75kg\/pc \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2 style=\"text-align: left;\"\u003eApplication with the output transformer\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WVT-OT2A3_a1.jpg?v=1529468638\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e \u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":10826179248243,"sku":"WVTR-OT2A3(8C)","price":85.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTR-OT2A3_8C_2.jpg?v=1571438884"},{"product_id":"300b-output-transformer-c-type-single-ended-british-amorphous-8c-advanced-core-pr-3-5k-se-0-4-8-ohms-for-vacuum-tube-300b","title":"IWISTAO 300B Output Transformer C Type Single-ended British Amorphous 8C Advanced Core Pr 3.5K","description":"\u003ch1 style=\"text-align: center;\"\u003e300B Output Transformer C Type Single-ended British Amorphous 8C Advanced Core Pr 3.5K Se 0-4-8 ohms\u003c\/h1\u003e\n\u003cp\u003e\u003cbr\u003e Model No: WVTR-OT300B(8C)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eThis 300B single-ended output transformer uses British amorphous high-grade C-type iron core that has a unique advantage, especially when he static operating point is 80ma or below , it can give full play to the advantages of the output transformer. After actual measurement and listening, the voice is very vivid, clear, low-frequency tension is very balanced in three bands, excellent permeability and atmosphere feeling\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eUsing high-quality enameled wire, lamination process, CNC drying, vacuum impregnation, well-designed 8C structure, to design to a perfect coefficient.\u003c\/span\u003e\u003cbr\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eIt is a better choice to tube amplifier audiophiles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePS: A stereo tube amplifier need 2 pcs output transformers.\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WVTR-OT300B_1_1024x1024_2.jpg?v=1556698521\" alt=\"IWISTAO 300B Output Transformer C Type Single-ended British Amorphous 8C Advanced Core Pr 3.5K(3)\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WVTR-OT2A3_8C_4.jpg?v=1556696620\" alt=\"IWISTAO 300B Output Transformer C Type Single-ended British Amorphous 8C Advanced Core Pr 3.5K\"\u003e\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WVTR-OT2A3_8C_5.jpg?v=1556696570\" alt=\"IWISTAO 300B Output Transformer C Type Single-ended British Amorphous 8C Advanced Core Pr 3.5K\"\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e1. Power: 8W\u003c\/p\u003e\n\u003cp\u003e2. Material: British amorphous 8C advanced core\u003c\/p\u003e\n\u003cp\u003e3. Primary impedance: 3.5k ohms (80-100ma)\u003c\/p\u003e\n\u003cp\u003e4. Secondary impedance: 0-4-8 ohms (16 ohm output can be ordered)\u003c\/p\u003e\n\u003cp\u003e5 Inductance: 16-17H\u003c\/p\u003e\n\u003cp\u003e6. Bandwidth: 20HZ- 35KHZ(-1DB)\u003c\/p\u003e\n\u003cp\u003e7. Size(W*H*D): 86*88*75mm\u003c\/p\u003e\n\u003cp\u003e8. Weight: 1.9kg\/pc \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14px;\"\u003eApplication with the output transformer\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVT-OT300B(8Ca2l\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1tH_HyYSYBuNjSspfq6AZCpXaL.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVT-OT300B(8Ca5\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1ghG1iL6TBKNjSZJiq6zKVFXaQ.jpg\"\u003e\u003c\/p\u003e\n\u003cdiv style=\"clear: both;\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":10837752447091,"sku":"WVTR-OT300B(8C)","price":83.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTR-OT300B_1.jpg?v=1571438884"},{"product_id":"iwistao-tube-amplifier-transformer-kit-for-6p1-6p14-6p6-tube-amp-including-1pc-85w-power-2pcs-output-transformers-hifi-audio","title":"IWISTAO Tube Amp Transformer Kit for 6P1 6P14 6P6 Including 1pc 85W Power 2pcs Output Transformers","description":"\u003ch1 style=\"padding: 5px; text-align: center;\"\u003eIWISTAO Tube Amplifier Transformer Kit for 6P1 6P14 6P6 Tube Amp Including 1pc 85W Power 2pcs Output Transformers HIFI Audio\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eModel No: WHF-S85W\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eIt is a 85W tube amplifier transformer kit for \u003c\/span\u003e\u003cspan style=\"font-size: 14px;\"\u003e6P1 6P14 6P6\u003c\/span\u003e\u003cspan style=\"font-size: 14px;\"\u003e or similar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-Tube-Amplifier-Transformer-Kit-for-6P1-6P14-6P6-Tube-Amp-Including-1pc-85W-Power-2pcs_d5a1662f-a482-4112-871c-20c83c60710a.jpg?v=1530760582\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ch2\u003e\n\u003cbr\u003e A. Power transformer X 1\u003c\/h2\u003e\n\u003cp\u003e1. Power: 85W\u003c\/p\u003e\n\u003cp\u003e2. Core:  EI76 0.5mm,  new annealing silicon steel sheet\u003c\/p\u003e\n\u003cp\u003e3. Skeleton:  25*50,  iron core stack thickness 50mm\u003c\/p\u003e\n\u003cp\u003e4. Primary: 0--220V\/50Hz\u003c\/p\u003e\n\u003cp\u003e5. Secondary:\u003c\/p\u003e\n\u003cp style=\"margin-left: 40px;\"\u003e0V-230v-250V \/ 0.15A\u003cbr\u003e 0-5V-6.3V \/ 2A\u003cbr\u003e 0- 6.3V \/ 2A (2 group)\u003cbr\u003e  \u003c\/p\u003e\n\u003cp\u003e6. Weight: 1.9Kg\u003c\/p\u003e\n\u003cp\u003e7. Size（D*W*H）: 64mm*82mm*76mm\u003c\/p\u003e\n\u003ch2\u003e\n\u003cbr\u003e \u003cbr\u003e B. Output transformer X 2\u003c\/h2\u003e\n\u003cp\u003e\u003cbr\u003e      1. Skeleton: 57x26\u003c\/p\u003e\n\u003cp\u003e     2. Primary Impedance: 5K\u003c\/p\u003e\n\u003cp\u003e     3. Output impedance: 0--4--8 ohm\u003cbr\u003e \u003cbr\u003e      4. Inductance: 13 H\u003c\/p\u003e\n\u003cp\u003e     6. Core is made of 86 new annealed silicon sheet\u003c\/p\u003e\n\u003cp\u003e     7. Weight: 0. 6kg \/ pc\u003c\/p\u003e\n\u003cp\u003e     8. Size（D*W*H）: 60mm*55mm*50mm\u003c\/p\u003e\n\u003cp\u003e     9. Distance of installation holes: 73mm\u003cbr\u003e \u003cbr\u003e  \u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":11901260529779,"sku":"WHF-S85W","price":52.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-Tube-Amplifier-Transformer-Kit-for-6P1-6P14-6P6-Tube-Amp-Including-1pc-85W-Power-2pcs.jpg?v=1571438885"},{"product_id":"12w-amorphous-c-type-core-push-pull-output-transformer-pr10k-se-0-4-8-ohms-for-tube-amplifier-6p1-6p14-el84","title":"IWISTAO 12W Amorphous C-type Core Push-pull Output Transformer 10K for Tube 6P1 6P14 EL84","description":"\u003cp\u003e \u003c\/p\u003e\n\u003ch2 style=\"padding: 5.0px; text-align: center;\"\u003eIWISTAO 12W Amorphous C-type Core Push-pull Output Transformer Pr 10K Se 0-4-8 Ohms for Tube Amplifier 6P1 6P14 EL84\u003c\/h2\u003e\n\u003ch1 style=\"text-align: center;\"\u003e \u003c\/h1\u003e\n\u003ch2\u003eModel No: WVTR-OTPP12W(4C)\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eThis pull-push output transformer uses British amorphous high-grade C-type iron core that has a unique advantage. After actual measurement and listening, the voice is very vivid, clear, low-frequency tension is very balanced in three bands, excellent permeability and atmosphere feeling\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eUsing high-quality enameled wire, lamination process, CNC drying, vacuum impregnation, well-designed 8C structure, to design to a perfect coefficient.\u003c\/span\u003e\u003cbr\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eIt is a better choice to tube amplifier audiophiles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTR-OTPP12W_4C_04_a5836fe3-cdaa-40c8-975d-a11f0ee89e4e.jpg?v=1538297496\"\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTR-OTPP12W_4C_02_4dda366c-3fdf-4880-a674-b185d40efdb5.jpg?v=1538297496\"\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTR-OTPP12W_4C_03_0252ee24-070c-4291-9efc-c7e67076a1b8.jpg?v=1538297496\"\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTR-OTPP12W_4C_01_949a60c6-66e3-4e4d-8436-8946164cb9ff.jpg?v=1538297496\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePS: A stereo tube amplifier need 2 pcs output transformers.\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTR-OTPP12W_4C_479176e2-f0ad-4138-b857-8f81feb95314.jpg?v=1538297496\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e1. Power: 12W\u003c\/p\u003e\n\u003cp\u003e2. Material: British amorphous 4C advanced core\u003c\/p\u003e\n\u003cp\u003e3. Primary impedance: 10k ohms \u003c\/p\u003e\n\u003cp\u003e4. Secondary impedance: 0-4-8 ohms (16 ohm output can be ordered)\u003c\/p\u003e\n\u003cp\u003e5. Bandwidth: 20HZ- 40KHZ(-1DB)\u003c\/p\u003e\n\u003cp\u003e6. Size(W*H*D): 86*68*76mm\u003c\/p\u003e\n\u003cp\u003e8. Weight: 1kg\/pc \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cspan style=\"visibility: hidden;\" data-id=\"1705222711000\" id=\"cnki_grabber\"\u003e\u003c\/span\u003e\n\u003cdiv style=\"position: absolute; left: 20px; top: 22.1875px;\" id=\"gtx-trans\"\u003e\n\u003cdiv class=\"gtx-trans-icon\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Within UL Tap","offer_id":12995146547315,"sku":"WVTR-OTPP12W(4C)-UL","price":67.9,"currency_code":"USD","in_stock":true},{"title":"Without UL Tap","offer_id":16624012918899,"sku":"WVTR-OTPP12W(4C)-NUL","price":62.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTR-OTPP12W_4C_02_4dda366c-3fdf-4880-a674-b185d40efdb5.jpg?v=1571438886"},{"product_id":"iwistao-tube-amplifier-output-transformer-3w-single-ended-silicon-steel-ei-transformers-power-audio-hifi-diy-free-shipping","title":"IWISTAO Tube Amplifier Output Transformer 3W Single-ended Silicon Steel Audio HIFI DIY","description":"\u003ch1 style=\"padding: 5.0px; text-align: center;\"\u003eIWISTAO Output Transformer 3W Tube Amplifier Single-ended Primary Impedance 5K for Tubes Amplifier\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eModel No: WVTR-OT3W\u003c\/h2\u003e\n \n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT3W(8X8)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Ay79XZrrK1Rjy1zeq6xalFXaU.jpg\"\u003e\u003cimg alt=\"WVTR-OT3W\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1zP35X6vuK1Rjy0Faq6x2aVXaD.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT3W(8X8)2\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1KL.3XZfrK1Rjy0Fmq6xhEXXa5.jpg\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp align=\"left\"\u003e \u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e1. Used cold-rolled non-oriented high silicon (H10\/0.35EI) dedicated audio chip by Nippon Steel Company.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e2. High-quality oxygen-free copper wire wrap wire, layered segments, each insulated with insulating paper, carefully wound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e3. Used advanced dipping process, so that the transformer has good insulation and moisture resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e4. Wiring using 20cm long leads, more convenient to use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e5. Sound transparent innocence, sweet tone warm and rich, an excellent solution clarity intensity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e1. Power: 3W\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e2. Frequency Response: 20z-30KHz (-2dB)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e3. Core Specifications: EI48X18 , core section X18MM\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e5. Primary Impedance: 5K,\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e6. Secondary: 0-4-8 \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e7. Primary Inductance: 7H\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e8. Primary DC resistance: 270 ohm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e9. Dimension(L*W*H): 50mm x 38mm x 42mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e10. Distance for fixed holes: 60mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e11. Weight: 0.3kg\/pc\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e12. Quantities: 1 pair\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eHow to connect wires with tube and output \u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eJust as an example only, you need confirm it according your tube for power amplification.\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"ot transformer\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1omp2LXXXXXXrXXXXq6xXFXXXE\/224400538\/HTB1omp2LXXXXXXrXXXXq6xXFXXXE.jpg?size=56815\u0026amp;height=455\u0026amp;width=595\u0026amp;hash=ae31de662b312cca8d58647612dac207\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":17883855028339,"sku":"WVTR-OT3W","price":24.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-Tube-Amplifier-Output-Transformer-3W-Single-ended-Silicon-Steel-EI-Transformers-Power-Audio-HIFI-DIY.jpg?v=1571438888"},{"product_id":"iwistao-tube-amp-output-transformer-1-pair-5w-ultra-linear-z11-single-ended-silicon-steel-ei-audio-6p1-6p14-6p6-free-shipping","title":"IWISTAO Tube Amplifier Output Transformer 1Pair 5W Ultra Linear Z11 Single-ended 6P1 6P14 6P6","description":"\u003cdiv\u003e\n\u003ch1 style=\"padding: 5.0px; text-align: center;\"\u003e\u003cspan style=\"font-size: 18px;\"\u003eIWISTAO Tube Amplifier  5W Output Transformer 1 Pair  Single-ended PR5K  Ultra Linear for Tubes Amplifier 6P1 6P14 6P6\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eModel No: WVTR-OT5WUL\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eIt is suitable for tube 6P1, 6P14, 6P6 as ultra linear connection.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-OTWUL（l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1ilYdV8LoK1RjSZFuq6xn0XXaw.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e1. Used cold-rolled non-oriented high silicon (H10\/0.35EI) dedicated audio chip by Nippon Steel Company.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e2. High-quality oxygen-free copper wire wrap wire, layered segments, each insulated with insulating paper, carefully wound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e3. Used advanced dipping process, so that the transformer has good insulation and moisture resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e4. Wiring using 20cm long leads, more convenient to use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e5. Sound transparent innocence, sweet tone warm and rich, an excellent solution clarity intensity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e1. Power: 5W\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e2. Frequency Response: 20z-30KHz (-2dB)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e3. Core Specifications: EI57X25 , core section X25MM\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e5. Primary Impedance: 5K ultra linear (B-G-P)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e6. Secondary: 0-4-8 ohm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e7. Primary Inductance: no less than 15H\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e8. Primary DC resistance: no more than 550 ohm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e9. \u003c\/span\u003eSize (L*W*H): 59mm*47mm* 51mm\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e10. Center Distance of mounting hole : 70mm\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e11. Qty: 2 pcs\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e12. Weight: 1.2kg\/pair\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"gtx-trans\" style=\"position: absolute; left: -41px; top: 198.586px;\"\u003e\n\u003cdiv class=\"gtx-trans-icon\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":18604194037875,"sku":"WVTR-OT5WUL","price":35.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-Tube-Amp-Output-Transformer-1-Pair-5W-Ultra-Linear-Z11-Single-ended-Silicon-Steel-EI_c4105663-6b44-4f56-bf14-160b5d5a3e11.jpg?v=1571438893"},{"product_id":"iwistao-tube-amplifier-30w-output-transformer-1-pair-z11-single-ended-silicon-steel-pr-2-5k-3-5k-for-300b-2a3-audio-hifi-diy","title":"IWISTAO Tube Amp 30W Output Transformer 1Pair Z11 Single-ended Silicon Steel 2.5\/3.5K for 300B 2A3","description":"\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ch1 style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 18px;\"\u003eIWISTAO Tube Amplifier 30W Output Transformer EI96 Z11 Single-ended Silicon Steel  PR 2.5K\/3.5K for 300B 2A3  Audio HIFI DIY\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 style=\"line-height: 15.75pt;\"\u003e\u003cspan style=\"font-family: arial , sans-serif;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eModel No: WHFT-OT30W\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eAdopt High silicon annealing 0.35EI dedicated audio chips. \u003c\/span\u003eHigh quality thick nylon frame and high quality Japan Z11 annealed silicon steel flux H50.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e1. \u003c\/span\u003e\u003c\/span\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003ePrimary impedance : 3.5K  or 2.5K\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e2. \u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003eSecondary : 0 - 4 - 8 ohms\u003c\/span\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e3. Frequency: 20-30K Hz (-2dB)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e4. Core (mm) width × stacked thick: 32 × 50 (EI96)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e5.\u003cspan style=\"font-size: 14.0px;\"\u003e Applicable tubes: 2A3, 300B, EL156, KT88, FU13 (for single and two tubes)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e6. Vertical installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e7. Size(L*W*H): 80mm*85mm*96mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e8. Weight: 6kg \/ pair\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT30W(800x800)l\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1HqFoXa5s3KVjSZFNq6AD3FXaO.jpg\" style=\"font-family: arial, helvetica, sans-serif; font-size: 14px;\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"2.5K","offer_id":18607785312371,"sku":"WHFT-OT30W-2.5K","price":142.9,"currency_code":"USD","in_stock":true},{"title":"3.5K","offer_id":18607790096499,"sku":"WHFT-OT30W-3.5K","price":142.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-Tube-Amplifier-30W-Output-Transformer-1-Pair-Z11-Single-ended-Silicon-Steel-PR-2-5K.jpg?v=1571438893"},{"product_id":"iwistao-tube-amplifier-15w-output-transformer-1-pair-z11-single-ended-silicon-steel-3-5k-ultra-linear-british-bracket-diy","title":"IWISTAO Tube Amp 15W Output Transformer 1Pair Z11 Single-ended Silicon Steel 3.5K Ultra Linear","description":"\u003cdiv\u003e\n\u003ch1 style=\"text-align: center;\"\u003e IWISTAO Tube Amplifier 15W Output Transformer EI86 Z11 Single-ended Silicon Steel 3.5K  Ultra Linear Tap Audio HIFI DIY \u003c\/h1\u003e\n\u003ch2 style=\"line-height: 15.75pt;\"\u003e\u003cspan style=\"font-family: arial , sans-serif;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eModel No: WHFT-OT15WSG\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eAdopt High silicon annealing 0.35EI dedicated audio chips. \u003c\/span\u003eHigh quality thick nylon frame and high quality Japan Z11 annealed silicon steel flux H50.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e1. \u003c\/span\u003e\u003c\/span\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003ePrimary impedance : 3.5K with ultra linear tap (SG)\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e2. \u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003eSecondary : 0 - 4 - 8 ohms\u003c\/span\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e3. Frequency: 20-30K Hz (-2dB)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e4. C\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 14px;\"\u003eore EI86*40\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e6. Vertical installation with British bracket solder taps\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e7. Weight: 4kg \/ pair\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"(1WVTR-OT15WSG(1)00l\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1AStpXk5E3KVjSZFCq6zuzXXax.jpg\"\u003e\u003cimg alt=\"(1WVTR-OT15WSG(1)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1MQloXfWG3KVjSZFgq6zTspXab.jpg\"\u003e\u003cimg alt=\"(1WVTR-OT15WSG(1)1\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1So8uXlGw3KVjSZFDq6xWEpXax.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":18607983788147,"sku":"WHFT-OT15WSG","price":89.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-Tube-Amplifier-15W-Output-Transformer-1-Pair-Z11-Single-ended-Silicon-Steel-3-5K-Ultra.jpg?v=1571438893"},{"product_id":"iwistao-audio-signal-amplification-boosting-transformer-for-smartphone-computer-tv-player-tube-amplifier-sound-quality-enhancer","title":"IWISTAO Audio Signal Amp Boosting Transformer 1 Pair for Smartphone Computer TV Player","description":"\u003cdiv class=\"detailmodule_html\"\u003e\n\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003ch1 style=\"padding: 5.0px; text-align: center;\"\u003e\u003cspan style=\"font-size: 18px;\"\u003eIWISTAO Audio Signal Amplification Boosting Transformer 1 Pair for Smartphone Computer TV Player Tube Amplifier Sound Quality Enhancer\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14px;\"\u003eModel No: WHFTR-BV01\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eWhen you use your mobile phone or computer to listen to music, you will find that the sound is small, the details are small, and the dynamic is thin, their sound quality aren’t full and pleasant like as CD player, decoder. This is because the output value of mobile phone and computer is 0.2-0.5V audio voltage only, while the existing power amplifier is generally designed with an input voltage of 0.75-1.2V. This intermediate voltage difference requires a 2x amplification boost value. Now the 1:2 signal boosting transformer solves this disadvantage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e1:2 signal boosting transformer, balance transformer, and inverter transformer, that is a passive boosting transformer developed to compensate for low signal output of computers and mobile audio sources in the existing market. Make the ordinary sound source close to the effect of CD player signal one. And, if CD player connected the signal boosting transformer to power amplifier, its sound will be even more powerful. After the audio signal pass the boosting transformer and amplify,  it will output a stable impedance, it will lead to its signal transmission is fidelity, and its sound field positioning is better!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cimg alt=\"WHFTR-BV01(1)13_l\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1w4XJdA5E3KVjSZFCq6zuzXXaJ.jpg\"\u003e\u003cimg alt=\"WHFTR-BV01(1)_l\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1wSVRdrus3KVjSZKbq6xqkFXaa.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eThere are multi-purpose multi-connection methods, it will be single-ended to balance, single-ended to single-ended, conversely, or balanced to single-ended; If add a potentiometer, it will be used as passive preamplifier.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eVarious impedance ratio reference circuit diagrams.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cimg alt=\"WHFTR-BV01(2)l_l\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1HBNJdB1D3KVjSZFyq6zuFpXaQ.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eSuitable for: mobile phones, computers, TVs, iPad, tablets, players, MP3 cd players, etc.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eNet weight: 170 g \/ pc\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eBandwidth: 20Hz-60KHz\/-0.5db (measured by 48k load ap audio meter)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eSize: Diameter 48mm * Height 40mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eDiameter of screw hole: 8 mm\u003c\/span\u003e\u003cbr\u003e  \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cimg alt=\"WHFTR-BV01(1)1_l\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1DFRLdBGE3KVjSZFhq6AkaFXa7.jpg\"\u003e\u003cimg alt=\"WHFTR-BV01(C)_l\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1vy8JdA5E3KVjSZFCq6zuzXXa0.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WHFTR-BV01(1)1a_l\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB15R8HdxiH3KVjSZPfq6xBiVXaz.jpg\"\u003e\u003c\/p\u003e\n\u003ch1 style=\"text-align: center;\"\u003e \u003c\/h1\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":29135847784563,"sku":"","price":159.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-Audio-Signal-Amplification-Boosting-Transformer-for-Smartphone-Computer-TV-Player-Tube-Amplifier-Sound-Quality-Enhancer.jpg?v=1571438894"},{"product_id":"iwistao-passive-preamplifier-kits-no-assembled-unbalanced-to-balanced-balanced-to-unbalanced-rca-to-xlr-signal-transformer","title":"IWISTAO Passive Preamplifier Kit Unbalanced to Balanced\/RCA to XLR\/Signal Transformer","description":"\u003cdiv class=\"detailmodule_html\"\u003e\n\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003ch1 style=\"padding: 5.0px; text-align: center;\"\u003eIWISTAO Passive Preamplifier Kit Unbalanced to Balanced\/Balanced to Unbalanced\/RCA to XLR\/Signal Transformer\u003c\/h1\u003e\n\u003cp align=\"center\"\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eModel No: WHFTR-BV02K\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eWhen you use your mobile phone or computer to listen to music, you will find that the sound is small, the details are small, and the dynamic is thin, their sound quality aren’t full and pleasant like as CD player, decoder. This is because the output value of mobile phone and computer is 0.2-0.5V audio voltage only, while the existing power amplifier is generally designed with an input voltage of 0.75-1.2V. This intermediate voltage difference requires a 2x amplification boost value. Now the 1:2 signal boosting transformer solves this disadvantage.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e1:2 signal boosting transformer, balance transformer, and inverter transformer, that is a passive boosting transformer developed to compensate for low signal output of computers and mobile audio sources in the existing market. Make the ordinary sound source close to the effect of CD player signal one. And, if CD player connected the signal boosting transformer to power amplifier, its sound will be even more powerful. After the audio signal pass the boosting transformer and amplify, it will output a stable impedance, it will lead to its signal transmission is fidelity, and its sound field positioning is better!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/XpCUnxqsdbw\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eHere, we provide a set of kits for you assembling this passive preamplifier. There is a switch for switching XRL or RCA output.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WHFTR-BV02（3）l_1\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1hSURdwmH3KVjSZKzq6z2OXXas.jpg\"\u003e\u003cimg alt=\"WHFTR-BV02（3）l_2\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1tA.SdBiE3KVjSZFMq6zQhVXa3.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eSuitable for: mobile phones, computers, TVs, iPad, tablets, players, MP3 cd players, etc\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cspan style=\"font-size: 14px;\"\u003eThe kit includes:\u003c\/span\u003e\n\u003col style=\"list-style-type: lower-alpha;\"\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eSignal transformer x2\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eXLR connector x4\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eRCA terminal x4\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eMetal case x1\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eSwitch x 1\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eSize (W*H*D): 160mm*110mm*90mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eBandwidth: 20Hz-60KHz\/-0.5db (measured by 48k load ap audio meter)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 14px;\"\u003eWeight: 1.2kg\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WHFTR-BV01(C)_l\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1KCoRdv5G3KVjSZPxq6zI3XXa8.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cbr\u003e  \u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cbr\u003e There are two version as below.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e1. No assembling version \u003c\/span\u003e --- \u003cu\u003e\u003cstrong\u003e\u003cem\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003eThis kit isn’t assembled. After buying, it will be assembled by buyer.\u003c\/span\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e2. Finshed product vesion.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eYou may select which one you will want to buy.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Finished Product","offer_id":29180982820979,"sku":"","price":249.0,"currency_code":"USD","in_stock":true},{"title":"No Assembling","offer_id":29180982853747,"sku":"","price":229.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-Passive-Preamplifier-Kits-No-Assembled-Unbalanced-to-Balanced-Balanced-to-Unbalanced-RCA-to-XLR-Signal.jpg?v=1571438894"},{"product_id":"iwistao-1pc-output-transformer-0-8-50-150-300-600-ohm-2w-36h-for-tube-headphone-amplifier-import-z11-single-ended-silicon-steel","title":"IWSITAO 1pc Output Transformer 0-8-50-150-300-600ohm 2W 36H for Tube Head phone Amp Import Z11 Single-ended Silicon Steel EI HIFI DIY","description":"\u003ch1 style=\"text-align: center;\"\u003e\n\u003cspan style=\"font-size: 18.0px;\"\u003e1pc Output Transformer 0-50-150-300-600 ohm 2W 36H for Tube Headphone Amplifier Import Z11 Single-ended Silicon Steel \u003c\/span\u003e\u003cbr\u003e  \u003c\/h1\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eModel No: WHFOT-EA600\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cbr\u003e \u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WHFOT-EA600_2e0a730e-f3e5-42cd-b7d5-9de9250cea6d.jpg?v=1569316886\" alt=\"\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WHFOT-EA600_2.jpg?v=1569316886\" alt=\"\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WHFOT-EA600_5.jpg?v=1569316886\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePower: 2W (20Hz)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eFrequency Response: 20Hz-65KHz, -3dB (6P14,6P1,6V6,4P1S standard connection)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eFrequency response: 10Hz-60KHz -2db (6P14,6P1,6V6,4P1S triode connected)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePrimary Impedance: 5K\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePrimary copper resistance: 660 (B-P)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSecondary: 0-8-50-150-300-600\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eCore Size: EI66 stack thickness 40mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eMaterial: Japan imports Z11 chip\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eInductance: 36H (20Hz, 100MV, test equipment CHROMA3302-LCR)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eThe primary maximum allowed DC current: 40mA. Recommended 32mA\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eCentre distance of fix hole: 83mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDimensions: Height 56mm, feet wide 86mm, Coil wide 70mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eWeight: 1.2kg\/pc\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":30239456428147,"sku":"WHFOT-EA600","price":31.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WHFOT-EA600_2e0a730e-f3e5-42cd-b7d5-9de9250cea6d.jpg?v=1571438898"},{"product_id":"30w-tube-amplifier-output-transformer-single-ended-z11-annealed-silicon-steel-ei-300b-2a3-2a3el156-kt88-fu13-audio-hifi-diy","title":"IWISTAO 30W Tube Amplifier Output Transformer 1 PC Single-ended Z11 Annealed Silicon Steel EI Shield 300B 2A3 2A3EL156 KT88 FU13 211 845","description":"\u003ch1 style=\"text-align: center;\"\u003e\n\u003cspan style=\"font-size: 18px;\"\u003e IWISTAO \u003cspan style=\"font-family: arial , sans-serif;\"\u003e30W 1 PC Single-ended Tube Amplifier Output Transformer \u003c\/span\u003e\u003cspan style=\"font-family: arial, sans-serif; line-height: 15.75pt;\"\u003eZ11 \u003c\/span\u003e\u003cspan style=\"line-height: 15.75pt;\"\u003eAnnealed\u003c\/span\u003e\u003cspan style=\"line-height: 15.75pt;\"\u003e\u003cspan style=\"font-family: arial , sans-serif;\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"line-height: 15.75pt; font-family: arial, sans-serif;\"\u003eSilicon Steel  Sheet EI Transformers Shield 300B 2A3 \u003c\/span\u003e\u003cspan style=\"line-height: 15.75pt;\"\u003eEL156 KT88 FU13 \u003c\/span\u003e\u003cspan style=\"line-height: 15.75pt; font-family: arial, sans-serif;\"\u003ePower\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"line-height: 15.75pt; font-size: 18.0px; font-family: arial , sans-serif;\"\u003e HIFI DIY\u003c\/span\u003e\u003cbr\u003e \u003c\/h1\u003e\n\u003ch1 style=\"line-height: 15.75pt;\"\u003e\u003cspan style=\"line-height: 15.75pt; font-size: 18.0px; font-family: arial , sans-serif;\"\u003eModel No: WVTR-OT30W(S)\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eThe output transformer adopt core of Japan Z11 (0.35EI) Annealed silicon steel dedicated audio sheets, high quality oxygen-free copper wire coil package, and use pure pulp insulating paper between each insulated layer. Production process of output transformer defying cumbersome, adopt 2 out 3 clips or 4 out 5 clips method with hierarchical segmentation, placing paper with group by group, also with processes of meticulous, careful winding, vacuum impregnation, these lead to the transformer has good insulation and moisture resistant, transparent sound, sweet warm and mellow, excellent solution and clarity, as well as nice shape.\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eIt is a better choice to tube amplifier audiophiles.\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e\u003cu\u003ePS: A stereo tube amplifier need 2 pcs output transformers.\u003c\/u\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT30W(0l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1JWd2IVXXXXXuaXXXq6xXFXXX5\/201217466\/HTB1JWd2IVXXXXXuaXXXq6xXFXXX5.jpg?size=61605\u0026amp;height=700\u0026amp;width=700\u0026amp;hash=5fa4deccb9588a9bdb45d52202187515\"\u003e\u003c\/h1\u003e\n\u003ch1 style=\"text-align: center;\"\u003e \u003c\/h1\u003e\n\u003ch1 style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT30W(l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1N8ehIVXXXXbgXFXXq6xXFXXXU\/201217466\/HTB1N8ehIVXXXXbgXFXXq6xXFXXXU.jpg?size=70856\u0026amp;height=700\u0026amp;width=700\u0026amp;hash=192341d6bb9158924d98593db0a332d9\"\u003e\u003c\/h1\u003e\n\u003ch1 style=\"text-align: center;\"\u003e \u003c\/h1\u003e\n\u003ch1 style=\"text-align: center;\"\u003e \u003c\/h1\u003e\n\u003ch1\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003eFeatures\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e1.    High quality thick nylon frame and high quality Japan Z11 annealed silicon steel flux H50.\u003c\/span\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1 align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e2.    Effectively isolated electromagnetic interference with iron paint shell.\u003c\/span\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2 align=\"left\"\u003e\u003cspan\u003eOptions \u003c\/span\u003e\u003c\/h2\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cu\u003e\u003cb\u003e(Please check the diagram circuit of your tube amplifier to select a related an option, it is a normal application for the tubes. And, the information below only for you information)\u003c\/b\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan\u003e1. Tube \u003c\/span\u003e\u003cspan\u003e6C33C\/6С33С-B 6336A 6AS7 6080 \u003c\/span\u003e\u003cspan\u003eSingle- ended Output: \u003c\/span\u003e\u003cspan\u003ePre\/Sec \u003c\/span\u003e\u003cspan\u003eimpendance\u003c\/span\u003e\u003cspan\u003e: \u003c\/span\u003e\u003cspan\u003e600Ω\/0-4Ω-8Ω.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan\u003e2. Tube \u003c\/span\u003e\u003cspan\u003e300B KT66 KT88\/6550 6L6 KT90 KT120 KT150 \u003c\/span\u003e\u003cspan\u003eSingle- ended Output: \u003c\/span\u003e\u003cspan\u003ePre\/Sec \u003c\/span\u003e\u003cspan\u003eimpendance\u003c\/span\u003e\u003cspan\u003e: 3.5k\u003c\/span\u003e\u003cspan\u003eΩ\/0-4Ω-8Ω.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan\u003e3. \u003c\/span\u003e\u003cspan\u003eTube 2A3 \u003c\/span\u003e\u003cspan\u003eSingle- ended Output: \u003c\/span\u003e\u003cspan\u003ePre\/Sec \u003c\/span\u003e\u003cspan\u003eimpendance\u003c\/span\u003e\u003cspan\u003e: 2.5k\u003c\/span\u003e\u003cspan\u003eΩ\/0-4Ω-8Ω.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan\u003e4. Tube \u003c\/span\u003e\u003cspan\u003e211 VT4C 845 805 GM-70 813 \u003c\/span\u003e\u003cspan\u003eSingle- ended Output: \u003c\/span\u003e\u003cspan\u003ePre\/Sec \u003c\/span\u003e\u003cspan\u003eimpendance\u003c\/span\u003e\u003cspan\u003e: 9k\u003c\/span\u003e\u003cspan\u003eΩ\/0-4Ω-8Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003ch1\u003e\n\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/h1\u003e\n\u003ch1\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e1. \u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003ePrimary impedance (kilohms): Red-Blue: 600, 3.5K (200MA) or 2.5K,9K \u003cspan\u003eΩ\u003c\/span\u003e \u003c\/span\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e2. \u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003eSecondary (Ohms): Black-Green-Red: 0 - 4 - 8 \u003cspan\u003eΩ\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e3. Frequency: 20-30K Hz (-2dB)\u003c\/span\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cspan style=\"font-family: arial , helvetica , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e4. Core (mm) width × stacked thick: 32 × 50 (96 tablets)\u003c\/span\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003e5.\u003cspan style=\"font-size: 14.0px;\"\u003e Applicable tubes: 2A3, 300B, EL156, KT88, FU13, 211, 845. etc\u003c\/span\u003e\u003c\/p\u003e\n\u003ch1\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e6. Weight: 3.2 kg\/pc\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch1\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/96-50_600x600.jpg?v=1734514087\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003ch1 style=\"text-align: center;\"\u003e \u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch1 style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT30W(2l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Q2N.IVXXXXbNXVXXq6xXFXXXA\/201217466\/HTB1Q2N.IVXXXXbNXVXXq6xXFXXXA.jpg?size=65028\u0026amp;height=700\u0026amp;width=700\u0026amp;hash=e43340199f8397f40d136d8cf551fe35\"\u003e\u003c\/h1\u003e\n\u003ch1 style=\"text-align: center;\"\u003e \u003c\/h1\u003e\n\u003ch1 style=\"text-align: center;\"\u003e\n\u003cimg alt=\"WVTR-OT30W(3l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1K91pIVXXXXbqXpXXq6xXFXXXF\/201217466\/HTB1K91pIVXXXXbqXpXXq6xXFXXXF.jpg?size=69747\u0026amp;height=700\u0026amp;width=700\u0026amp;hash=7a849e0ed335703a9ae3c22b9ad13a08\"\u003e\u003cimg alt=\"WVTR-OT30W(4l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Txt7IVXXXXafaXXXq6xXFXXXT\/201217466\/HTB1Txt7IVXXXXafaXXXq6xXFXXXT.jpg?size=61130\u0026amp;height=700\u0026amp;width=700\u0026amp;hash=244c410c7a27fd6ab612979ef6b64e9b\"\u003e\u003cimg alt=\"WVTR-OT30W(5l)\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1Dx4ZIVXXXXbHapXXq6xXFXXXh\/201217466\/HTB1Dx4ZIVXXXXbHapXXq6xXFXXXh.jpg?size=65842\u0026amp;height=699\u0026amp;width=700\u0026amp;hash=b6f66f80287779ff04dd07acf90a04dd\"\u003e\n\u003c\/h1\u003e\n\u003ch1\u003e \u003c\/h1\u003e\n\u003ch1\u003e\u003cbr\u003e\u003c\/h1\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"3.5k ohms","offer_id":30992812540019,"sku":"","price":84.9,"currency_code":"USD","in_stock":true},{"title":"2.5 k ohms","offer_id":30992812572787,"sku":"","price":84.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/30W_SE_OPT_1.jpg?v=1571991739"},{"product_id":"iwistao-amorphous-c-type-core-single-ended-output-transformer-pr5k-se-0-4-8-16-ohms-for-tube-amplifier-6p1-6p14-el84-6p6p-6v6","title":"IWISTAO Amorphous C-type Core Single-ended Output Transformer Pr 5K Se 0-4-8-16 Ohms for Tube Amplifier 6P1 6P14 EL84 6P6P 6V6","description":"\u003cdiv class=\"detailmodule_html\"\u003e\n\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003ch1 style=\"text-align: center;\"\u003eIWISTAO Amorphous C-type Core Single-ended Output Transformer Pr 5K Se 0-4-8-16 Ohms for Tube Amplifier 6P1 6P14 EL84 6P6P 6V6\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eModel No: WVTR-OPTSE5K(4C)\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eThe British amorphous 4c advanced iron core is suitable for vacuum tube 6p6p,6v6.el84, 6p1, 6p14 single-ended small class A tube power amplifiers, because distributed capacitance of the gate to the cathode of these tubes is relatively large, coupled with relatively high impedance, With multiple turns, and the leakage inductance naturally increases. This is why these unknown small tubes are always difficult to reach HIFI music hall.\u003c\/span\u003e\u003cbr\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eTaking into account market positioning and consumer’s taste, we have developed a single-ended output transformer that adopts British 4C amorphous high-grade iron core and carefully wound to make up for the shortcomings of these tubes and improve their sound quality. Also \u003c\/span\u003e\u003cspan style=\"font-size: 14px;\"\u003eUsing high-quality enameled wire, lamination process, CNC drying, vacuum impregnation, well-designed 8C structure, to design to a perfect coefficient.\u003c\/span\u003e\u003cbr\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eAfter actual measurement and listening, the voice is very vivid, clear, low-frequency tension is very balanced in three bands, excellent permeability and atmosphere feeling\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eIt is a better choice to tube amplifier audiophiles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.cn\/s\/files\/1\/1105\/6138\/files\/WVTR-OPTSE5K_4C_1.jpg?v=1585384669\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.cn\/s\/files\/1\/1105\/6138\/files\/WVTR-OPTSE5K_4C_2.jpg?v=1585384720\" alt=\" IWISTAO Amorphous C-type Core Single-ended Output Transformer Pr5K Se 0-4-8-16 Ohms for Tube Amplifier 6P1 6P14 EL84 6P6P 6V6\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.cn\/s\/files\/1\/1105\/6138\/files\/WVTR-OPTSE5K_4C_5.jpg?v=1585384800\" alt=\" IWISTAO Amorphous C-type Core Single-ended Output Transformer Pr5K Se 0-4-8-16 Ohms for Tube Amplifier 6P1 6P14 EL84 6P6P 6V6\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.cn\/s\/files\/1\/1105\/6138\/files\/WVTR-OPTSE5K_4C_6.jpg?v=1585384831\" alt=\" IWISTAO Amorphous C-type Core Single-ended Output Transformer Pr5K Se 0-4-8-16 Ohms for Tube Amplifier 6P1 6P14 EL84 6P6P \"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eSpecifications\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e1. Material: British amorphous advanced 4C iron core\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e2. Bandwidth: 25HZ-40Khz(-1dB)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e3. Impedance: 5K ohms\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e4. Output impedance: 0-4-8-16 ohms\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e5. Weight: 1.1kg \/ piece\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e8. Size (W * H * D): 86mm * 75mm * 60mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003cwidget data-widget-type=\"relatedProduct\" id=\"23302182\" title=\"\" type=\"relation\"\u003e\u003c\/widget\u003e\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":31270612074611,"sku":"WVTR-OPTSE5K(4C)","price":59.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTR-OPTSE5K_4C_1.jpg?v=1585384450"},{"product_id":"1pc-output-transformer-0-62ohm-0-5w-for-tube-headphone-amplifier-import-z11-single-ended-silicon-steel-ei-hifi-diy-1","title":"IWISTAO 1pc Output Transformer 0-62ohm 0.5W for Tube Headphone Amplifier Import Z11 Single-ended Silicon Steel EI HIFI DIY","description":"\u003cdiv style=\"padding: 5px; text-align: center;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eIWISTAO 1pc Output Transformer 0-62 ohm 0.5W for Tube Headphone Amplifier Import Z11 Single-ended Silicon Steel \u003c\/span\u003e\u003c\/div\u003e\n\n\u003ch1 style=\"padding: 5.0px;text-align: center;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e\u003c\/span\u003e\u003c\/h1\u003e\n\n\u003ch2 style=\"padding: 5px;\"\u003e\n\u003cspan style=\"font-size: 18.0px;\"\u003eModel No: \u003c\/span\u003eWVHTR-OT0.5\u003c\/h2\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 16.0px;\"\u003e\u003cstrong\u003e\u003cspan style=\"color: #ff0000;\"\u003eNote: Please buy 2 pcs output transformers if you need use it to make a stereo tube headphone amplifier.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 18.0px;\"\u003e\u003cimg alt=\"WVHTR-OT0.5_l1\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1a4eUg9YTBKNjSZKbq6xJ8pXal.jpg\"\u003e\u003cimg alt=\"WVHTR-OT0.5_l\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1IrJSuA9WBuNjSspeq6yz5VXav.jpg\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003col\u003e\n\t\u003cli\u003e\n\t\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePower: 0.5W \u003c\/span\u003e\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eFrequency Response: 40Hz-20KH\u003c\/span\u003e\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePrimary Impedance: 5K ohm\u003c\/span\u003e\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSecondary: 0-62 ohm\u003c\/span\u003e\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eCore Size: 19*24mm\u003c\/span\u003e\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eMaterial: Japan imports Z11 chip\u003c\/span\u003e\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eInductance: \u0026gt;=55H (20Hz, 100MV, test equipment CHROMA3302-LCR\u003c\/span\u003e\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eCentre distance of fix hole: 73mm\u003c\/span\u003e\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003eDimensions: Height 51mm, feet wide 58mm, Coil wide 58mm\u003c\/p\u003e\n\t\u003c\/li\u003e\n\t\u003cli\u003e\n\t\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eWeight: 0.55kg\/pc\u003c\/span\u003e\u003c\/p\u003e\n\t\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":31974713491571,"sku":"WVHTR-OT0.5","price":22.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/HTB1a4eUg9YTBKNjSZKbq6xJ8pXal.jpg?v=1597388023"},{"product_id":"iwistao-tube-amplifier-output-transformer-6-5w-single-ended-silicon-steel-power-6p1-6p6p-6p14-6v6-audio-hifi-diy","title":"IWISTAO Tube Amplifier Output Transformer 6.5W Single-ended Silicon Steel Power 6P1\/6P6P\/6P14\/6V6 Audio HIFI DIY","description":"\u003ch1 style=\"padding: 5.0px; text-align: center;\"\u003eIWISTAO Output Transformer Tube Amplifier Single-ended Primary Impedance 3.5k\/5K 6.5W 6P1\/6P6P\/6P14\/6V6 for Tubes Amplifier\u003c\/h1\u003e\n\u003ch1\u003e \u003c\/h1\u003e\n\u003ch1\u003e\u003cspan style=\"font-size: 18.0px;\"\u003eModel No: WVTR-OT65WSE\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp align=\"left\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTR-OT65WS(1)l11\" src=\"https:\/\/ae01.alicdn.com\/kf\/Hea63253cd5354271baf3e190d180bb67h.jpg\"\u003e\u003cimg alt=\"WVTR-OT65WS(1)l12\" src=\"https:\/\/ae01.alicdn.com\/kf\/Hbccfd90116aa4053858fbe60a2477237J.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eFeatures\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp align=\"left\"\u003e \u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e1. Used cold-rolled non-oriented high silicon (H10\/0.35EI) dedicated audio chip by Nippon Steel Company.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e2. High-quality oxygen-free copper wire wrap wire, layered segments, each insulated with insulating paper, carefully wound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e3. Used advanced dipping process, so that the transformer has good insulation and moisture resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e4. Wiring using 20cm long leads, more convenient to use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e5. Sound transparent innocence, sweet tone warm and rich, an excellent solution clarity intensity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e6. \u003cspan style=\"font-size: 14px;\"\u003eSuitable for vacuum tube 6P1\/6P6P\/6P14\/6V6.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"left\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e1. Power: 6.5W\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e2. Frequency Response: 20z-30KHz (-2dB)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e3. Core Specifications: EI66\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e5. Primary Impedance: 3.5k \/ 5K\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e6. Secondary: 0-4-8 ohms\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e7. Primary DC resistance: no less than 300 ohm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e8. Dimension(L*W*H): 58mm*65mm*68mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e9. Installation holes diatance: 75mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e10. Weight: 0.88kg\/pc\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eHow to connect wires with tube and output \u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eJust as an example only, you need confirm it according your tube for power amplification.\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"ot transformer\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1omp2LXXXXXXrXXXXq6xXFXXXE\/224400538\/HTB1omp2LXXXXXXrXXXXq6xXFXXXE.jpg?size=56815\u0026amp;height=455\u0026amp;width=595\u0026amp;hash=ae31de662b312cca8d58647612dac207\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"5k","offer_id":32039593115763,"sku":"WVTR-OT65WSE-5k","price":32.9,"currency_code":"USD","in_stock":true},{"title":"3.5k","offer_id":32039593148531,"sku":"WVTR-OT65WSE-3.5k","price":32.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-Tube-Amplifier-Output-Transformer-6-5W-Single-ended-Silicon-Steel-Power-6P1-6P6P-6P14-6V6.jpg?v=1600753592"},{"product_id":"iwistao-tube-amplifier-output-transformer-1pc-pull-push-50w-z11-silicon-steel-ei-for-tube-kt88-amp-hifi-diy","title":"IWISTAO Tube Amplifier Output Transformer 1pc Pull-Push 50W Z11 Annealed Silicon Steel EI for Tube KT88  Amp HIFI DIY","description":"\u003ch1 style=\"padding: 5px; text-align: center;\"\u003eIWISTAO Tube Amplifier Output Transformer 1pc Pull-Push 50W Z11 Annealed\u003cspan style=\"font-size: 14.0px;\"\u003e \u003c\/span\u003eSilicon Steel EI Tube Amp HIFI DIY for KT88\u003c\/h1\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003ch2\u003eModel No: \u003cspan style=\"color: #151515; font-family: 'Open Sans', sans-serif; font-size: 14px; white-space: nowrap; background-color: #ffffff;\"\u003eWVTRPP-50W\u003c\/span\u003e\u003cbr\u003e  \u003c\/h2\u003e\n\u003cdiv\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cu\u003e\u003cspan style=\"font-size: 14px;\"\u003ePS: A stereo tube amplifier need 2 pcs output transformers.\u003c\/span\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: tahoma , geneva , sans-serif;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eFeatures\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cbr\u003e \u003cspan style=\"font-size: 14.0px;\"\u003e1.    High quality thick nylon frame and high quality Japan Z11 annealed silicon steel.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e2.    Effectively isolated electromagnetic interference.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eIt is a better choice to tube amplifier audiophiles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVTRPP-50W（1）2l\" src=\"https:\/\/ae01.alicdn.com\/kf\/H6b4bb9b80d4b43b9affeabc8a98da850D.jpg\"\u003e\u003cimg alt=\"WVTRPP-50W（1）l_1\" src=\"https:\/\/ae01.alicdn.com\/kf\/He2e7e0aa9fe647eb84190bf643685720p.jpg\"\u003e\u003cimg alt=\"WVTRPP-50W（1）l_12\" src=\"https:\/\/ae01.alicdn.com\/kf\/H95e83f3a7aeb4e32b643059228596370H.jpg\"\u003e\u003cimg alt=\"WVTRPP-50W（1）l_2\" src=\"https:\/\/ae01.alicdn.com\/kf\/Hfc0a22099b0f4a2f830adf0183fcedeaS.jpg\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e1. Core Size: EI96,32mm * 50mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e2. \u003c\/span\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eWinding way: 4 folder 3 fragment wound\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e3. Frequency response: 35HZ -20KHZ\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e4. Inductance: L\u0026gt; = 180H @ 1000H\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e5. Primary Impedance: 5.5K ohm within UL tap\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e6. Secondary Impedance: 0-4-8 ohm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e7. Installation Center Pitch: 80mm * 75mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e8. \u003c\/span\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eDimensions: width 98 * high 55 * thick 100mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e9. Insulation treatment: immersion insulating paint\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e10. \u003c\/span\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eCore material: Imported Japan Z11 0.35MM thick insulation annealed sheet\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e11. Qty: 1pc\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003e12. Weight: 3.1KG\/pc\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"margin: 0.0px; padding: 0.0px; word-wrap: break-word; color: #000000; font-family: arial; text-align: center;\"\u003e \u003c\/p\u003e\n\u003cwidget type=\"custom\" title=\"shipping methods\" id=\"23175163\" data-widget-type=\"customText\"\u003e\u003c\/widget\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":32040225439859,"sku":"WVTRPP-50W","price":86.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-Tube-Amplifier-Output-Transformer-1pc-Pull-Push-50W-Z11-Silicon-Steel-EI-for-Tube-KT88.jpg?v=1600770713"},{"product_id":"iwistao-tube-amplifier-18w-output-transformer-1-pair-z11-single-ended-silicon-steel-pr-3-5k-3-5k-for-300b-2a3-audio-hifi-diy","title":"IWISTAO Tube Amplifier 18W Output Transformer 1 Pair Z11 Single-ended Silicon Steel  PR 3.5K for 6P3P EL34 KT88 FU50 FU7 300B Audio HIFI DIY","description":"\u003cdiv class=\"detailmodule_html\"\u003e\n\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003ch1 style=\"text-align: center;\"\u003e\n\u003cspan style=\"font-size: 18px;\"\u003eIWISTAO Tube Amplifier 18W Output Transformer EI76 Z11 Single-ended Silicon Steel  PR 3.5K for \u003c\/span\u003e\u003cspan style=\"font-size: 10.5pt; font-family: DengXian;\"\u003e6P3P \u003cspan style=\"font-size: 18px;\"\u003eEL34 KT88 FU50 FU7 300B\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 18px;\"\u003e Audio HIFI DIY\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 style=\"line-height: 15.75pt;\"\u003e\u003cspan style=\"font-family: arial, sans-serif;\"\u003e\u003cspan style=\"font-size: 18px;\"\u003eModel No: WHFT-OTSE18W\u003c\/span\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eAdopt High silicon annealing 0.35 EI dedicated audio chips.\u003c\/span\u003eHigh quality thick nylon frame and high quality Japan Z11 annealed silicon steel flux H50.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e  \u003c\/p\u003e\n\u003cp align=\"center\" style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/H18e8d84577c245e581c8140fa0667930m.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/H8f3176c8c7d246d28d29dc388f2a9be4m.jpg\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Hd616be9cf7d64de299b664d3b2e5d82e5.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003eProduct Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e1.\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 14px; font-family: arial, helvetica, sans-serif;\"\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003ePrimary impedance : 3.5K\u003c\/span\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e2.\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003eSecondary : 0 - 4 - 8 ohms\u003c\/span\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e3. Frequency: 20-30K Hz (-2dB)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e4. Core (mm) width × stacked thick: 25 × 50 (EI76)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e5.\u003cspan style=\"font-size: 14px;\"\u003eApplicable tubes: P3P EL34 KT88 FU50 FU7 300B\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e6. Vertical installation\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e7. Size(L*W*H): 76mm*50mm*66mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e8. Weight: 4.8kg \/ pair\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":39303850295411,"sku":"WHFT-OTSE18W","price":95.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-Tube-Amplifier-18W-Output-Transformer-1-Pair-Z11-Single-ended-Silicon-Steel-PR-3-5K.jpg?v=1618309579"},{"product_id":"iwistao-150w-line-transformer-audio-output-transformers-for-tweeter-broadcasting-speaker-diy","title":"IWISTAO 150W Line Transformer Audio Output Transformers for Tweeter Broadcasting Speaker DIY","description":"\u003cdiv class=\"detailmodule_html\"\u003e\n\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003ch1 align=\"center\" style=\"text-align:center\"\u003e\u003cspan style=\"font-size:20px\"\u003eIWISTAO 150W Line Transformer Audio Output Transformers for Tweeter Broadcasting Speaker\u003c\/span\u003e\u003c\/h1\u003e\n \n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\n\u003ch2\u003e\u003cspan style=\"font-size:16px\"\u003eModel No: WHFT-OPTDL150W\u003c\/span\u003e\u003c\/h2\u003e\n \n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003eAdopt 0.5mm annealed silicon steel sheet, pure copper enameled wire.\u003c\/span\u003e\u003c\/p\u003e\n \n\n\u003cp align=\"center\" style=\"text-align:center\"\u003e\u003cimg slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/Ha607401cd98d4181aafb36a8080d8a31f.jpg\"\u003e\u003cimg slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/H259a8def452944a18c115e9e13b71c2ca.jpg\"\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n \n\n\u003ch2\u003e\u003cspan style=\"font-size:16px\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n \n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e1. EI96 core 32*45 frame \u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e2. Input: 0-120V-240V \u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e3. Output is 0-16 ohms (20V) (which is strong and durable with screw crimping) \u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e4. Dimensions (L * W* H): 96mm*83mm*80mm \u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e5. Mounting hole size(L*W): 80mm* 70mm, 4 holes fixed \u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e6. Weight: 2.52kg\/pc\u003c\/span\u003e\u003c\/p\u003e\n \n\n\u003cp align=\"center\" style=\"line-height:15.75pt;text-align:center\"\u003e \u003c\/p\u003e\n\n\u003cdiv\u003e\n\u003cp\u003e\u003cimg slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1h4xKLXXXXXXcXFXXq6xXFXXX5\/224400538\/HTB1h4xKLXXXXXXcXFXXq6xXFXXX5.jpg?size=7292\u0026amp;height=28\u0026amp;width=714\u0026amp;hash=6a45f9a44d4dad2a9018fa9ef86f5171\"\u003e\u003c\/p\u003e\n\n\u003cp\u003e1. Worldwide Shipping (Except some countries).\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003e2. Orders processed timely within 3~5 business days after the payment verification.\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003e3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003e4. The images shown are not the actual item and are for your reference only.\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003e5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003e6. We supply 4 kinds of shipping services as below\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003eA. Expedited Shipping: DHL, UPS or Fedex. For faster shipping and smooth transaction, we will change the shipping company among them.\u003cu\u003eEstimated Delivery Time: 3~7days\u003c\/u\u003e\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003eB. Standard Shipping: EMS, eParket (US available) or DHL Global Mail (Germany available only)\u003cu\u003eEstimated Delivery Time: 3~7days\u003c\/u\u003e\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003eC. Economy Shipping: China Air Post Mail \/ Parcel, Hongkong Air Post Mail \/ Parcel, Sweden Post, etc.\u003cu\u003eEstimated Delivery Time: 15~60days\u003c\/u\u003e\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003eD. Special Routes: Russian Special Route,\u003cu\u003eEstimated Delivery Time: 30~ 40days;\u003c\/u\u003e\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003eAustralian Special Route,\u003cu\u003eEstimated Delivery Time: 10~ 15days;\u003c\/u\u003e\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003e\u003cu\u003eImport duties, taxes and other customs related charges all are not included into shipping cost . Buyers bear all responsibility for all extra charges incurred (if any).\u003c\/u\u003e\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003e\u003cimg slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1LAJALXXXXXbRXFXXq6xXFXXX6\/224400538\/HTB1LAJALXXXXXbRXFXXq6xXFXXX6.jpg?size=7257\u0026amp;height=28\u0026amp;width=714\u0026amp;hash=f37b75a3f4fc5129f14cb1cbc7f07f22\"\u003e\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003eWe will check the item carefully and make sure the quality before shipment. If some unexpected problems happened, please contact us firstly.If it is quality problem, buyer may submit argue within 7days after receiving the item, buyer must provide photos , video and other evidences to seller for identify. Man-made damaged, buyers take full responsibility.\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003e1) .The buyer return us the goods and responsible for return shipping costs; after we receive the goods ,we will send a new product to buyer and pay for the resend shipping cost.\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003e2) .If the goods (total price including shipping is less than 10USD) has quality problems, we will resend a new product in buyer next order; if buyer dont plan to make a new order in the near term, buyer can pay the resend shipping cost and ask to resend a new product.\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003e3). Due to the taxes problem, buyer refuse to receive the goods, buyer need to be Responsible for freight out and home.\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003e\u003cimg slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1AHFzLXXXXXbcXVXXq6xXFXXXG\/224400538\/HTB1AHFzLXXXXXbcXVXXq6xXFXXXG.jpg?size=7294\u0026amp;height=28\u0026amp;width=714\u0026amp;hash=56f005f5d9ba78fb1120d8e9d36a0cc9\"\u003e\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003e1. One year Manufacturer`s limited Warranty for defective items (excluding items damaged and\/or misused after receipt). Accessories come with a 3-month warranty.\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003e2. Defective items MUST BE reported and returned within the warranty period (with the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY. You agree to all of the above-listed policies upon ordering on aliexpress.\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003e\u003cimg slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB19WpzLXXXXXa.XVXXq6xXFXXX4\/224400538\/HTB19WpzLXXXXXa.XVXXq6xXFXXX4.jpg?size=7335\u0026amp;height=28\u0026amp;width=714\u0026amp;hash=3076c49f4d8f9879cbb89b1bcf4238e6\"\u003e\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003eWe maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.\u003c\/p\u003e\n\n\u003cp align=\"left\" style=\"text-align:left\"\u003e\u003cimg slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1GzxrLXXXXXamaXXXq6xXFXXX3\/224400538\/HTB1GzxrLXXXXXamaXXXq6xXFXXX3.jpg?size=7322\u0026amp;height=28\u0026amp;width=714\u0026amp;hash=e5c9cf222dcaff49cda4ac033090dce4\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003cwidget data-widget-type=\"relatedProduct\" id=\"23302182\" title=\"\" type=\"relation\"\u003e\u003c\/widget\u003e\u003c\/div\u003e\n\n\u003cdiv class=\"detailmodule_html\"\u003e\n\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":39304499265651,"sku":"","price":29.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-150W-Line-Transformer-Audio-Output-Transformers-for-Tweeter-Broadcasting-Speaker-DIY.jpg?v=1618368956"},{"product_id":"iwistao-25w-line-transformer-audio-output-transformers-constant-voltage-transformer-tweeter","title":"IWISTAO 25W Line Transformer Audio Output Transformers Constant voltage transformer  for Tweeter","description":"\u003cdiv class=\"detailmodule_html\"\u003e\n\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003ch1 align=\"center\" style=\"text-align:center\"\u003e\u003cspan style=\"font-size:20px\"\u003eIWISTAO 25W Line Transformer Audio Output Transformers Constant voltage transformer for Tweeter\u003c\/span\u003e\u003c\/h1\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n \n\n\u003ch2\u003e\u003cspan style=\"font-size:16px\"\u003eModel No: WHFT-OPTDL25W\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003eAdopt 0.5mm annealed silicon steel sheet, pure copper enameled wire.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp align=\"center\" style=\"text-align:center\"\u003e\u003cimg slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/H6d23aba864c74c21b88af0f74bd494005.jpg\"\u003e\u003cimg slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/H6e3ddb20c73f4602bace08b7c4db62d8c.jpg\"\u003e\u003c\/p\u003e\n \n\n\u003ch2\u003e\u003cspan style=\"font-size:16px\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e1. EI57*28 core, 19*28 frame\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e2. Input: 0-120V-240V\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e3. Output: 20V \u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e4. Dimensions (L * W* H): 60mm*55mm*50mm\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e5. Mounting hole distance: 70mm\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:16px\"\u003e6. Weight: 0.5kg\/pc\u003c\/span\u003e\u003cbr\u003e\n \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003cwidget data-widget-type=\"relatedProduct\" id=\"23302182\" title=\"\" type=\"relation\"\u003e\u003c\/widget\u003e\u003c\/div\u003e\n","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":39304538030195,"sku":"","price":10.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-25W-Line-Transformer-Audio-Output-Transformers-Constant-voltage-transformer-Tweeter.jpg?v=1618372419"},{"product_id":"iwistao-23w-tube-amplifier-output-transformer-1-pair-pull-push-z11-silicon-steel-shield-cover-for-6p1-6p6p-6p14-fu29-6aq5-6f6","title":"IWISTAO 23W Tube Amplifier Output Transformer 1 Pair  Pull-Push Z11 Silicon Steel  Shield Cover for 6P1 6P6P 6P14 FU29 6AQ5 6F6","description":"\u003cdiv class=\"detailmodule_html\"\u003e\n\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003ch1 align=\"center\" style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 20px;\"\u003eIWISTAO 23W Tube Amplifier Output Transformer 1 Pair Pull-Push Z11 Silicon Steel with Shield Cover for Tube 6P1 6P6P 6P14 FU29 6AQ5 6F6\u003c\/span\u003e\u003c\/h1\u003e\n \n\u003ch2\u003e\n\u003cspan style=\"font-size: 16px;\"\u003eModel No: WVTTPP-OPTPP23W\u003c\/span\u003e\u003cbr\u003e  \u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003eIt is made of imported Japanese Z11\/0.35 audio annealed silicon steel sheet and high temperature resistant oxygen-free copper wire with 4+3 HIFI winding method.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003eApplicable tube models: 6P1 6P6P\/6V6 6P14 FU29 6AQ5 6F6 and many other tube models\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp align=\"center\" style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Hc3ce99a4742c473083d105ee2665ab82s.jpg\" slate-data-type=\"image\"\u003e\u003cimg height=\"682\" src=\"https:\/\/ae01.alicdn.com\/kf\/H74e65b0d0ff042e7811d69d7d2da7834A.jpg\" width=\"799\" slate-data-type=\"image\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/H07353db71a27484b813f5a6298057dc2E.jpg\" slate-data-type=\"image\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 16px;\"\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 16px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e1. Power: 23W\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e2. Frequency response range: 20Hz-35KHz\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e3. Core frame: EI66, 22*45 (stack thickness 45mm)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e4. Primary impedance: \u003cspan style=\"text-decoration: underline;\"\u003e10K\u003c\/span\u003e (P1-SG1-B-SG2-P2), 43% SG super linear tap\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e5. Secondary impedance; 0-4Ω-8Ω\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e6. Maximum allowable primary current through 90ma\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e7. Size (L*W*H): 68mm*75mm*56mm,\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e8. Center distance of mounting holes: 81mm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 16px;\"\u003e9. Weight: 2.6Kg\/pair\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e10. Qty: 1 pair\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"detailmodule_dynamic\"\u003e\u003cwidget type=\"relation\" title=\"\" id=\"23401193\" data-widget-type=\"relatedProduct\"\u003e\u003c\/widget\u003e\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":39306732011635,"sku":"WVTTPP-OPTPP23W","price":66.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-23W-Tube-Amplifier-Output-Transformer-1-Pair-Pull-Push-Z11-Silicon-Steel-Shield-Cover-for.jpg?v=1618467050"},{"product_id":"iwistao-output-transformer-c-type-single-ended-british-amorphous-8c-advanced-core-pr-2-5-3-5k-se-0-4-16ohm-for-tube-2a3-300b","title":"IWISTAO Output Transformer C Type Single-ended British Amorphous core 8C Advanced Core Pr 2.5\/3.5K Se 0-4-16ohm for Tube 2A3\/300B","description":"\u003cdiv class=\"detailmodule_html\"\u003e\n\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003ch1 style=\"text-align: center;\"\u003eIWISTAO Output Transformer C Type Single-ended British Amorphous 8C Advanced Core Pr 3.5K Se 0-4-16 ohms\u003c\/h1\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003ch2 align=\"left\" style=\"text-align: left;\"\u003eModel No: WVTR-OT235k-16(8C)\u003c\/h2\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"background-color: #ffffff; color: #000000; font-size: 14px; font-family: 'Open Sans', Roboto, Arial, Helvetica, sans-serif, SimSun;\"\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003ePS: A stereo tube amplifier need 2 pcs output transformers.\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 align=\"left\" style=\"text-align: left;\"\u003e \u003c\/h2\u003e\n\u003ch2 align=\"left\" style=\"text-align: left;\"\u003e\u003cu\u003e\u003cstrong\u003e3.5K for tube 300B\u003c\/strong\u003e\u003c\/u\u003e\u003c\/h2\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eThis 300B single-ended output transformer uses British amorphous high-grade C-type iron core that has a unique advantage, especially when he static operating point is 80ma or below , it can give full play to the advantages of the output transformer. After actual measurement and listening, the voice is very vivid, clear, low-frequency tension is very balanced in three bands, excellent permeability and atmosphere feeling\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eUsing high-quality enameled wire, lamination process, CNC drying, vacuum impregnation, well-designed 8C structure, to design to a perfect coefficient.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eIt is a better choice to tube amplifier audiophiles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cp align=\"center\" style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Hed8544bc10614c67b8160f03f8d339c9W.jpg\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Ha98e2b77bd224514aa157e1dea4c4cd3X.jpg\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/H380056f41f9046eab8f9ece0465441f97.jpg\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Hf78153042784428fa20317a6f9215dba3.jpg\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003e  \u003c\/div\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e1. Power: 8W\u003c\/p\u003e\n\u003cp\u003e2. Material: British amorphous 8C advanced core\u003c\/p\u003e\n\u003cp\u003e3. Primary impedance: 3.5k ohms (80-100ma)\u003c\/p\u003e\n\u003cp\u003e4. Secondary impedance: 0-4-16 ohms\u003c\/p\u003e\n\u003cp\u003e5 Inductance: 16-17H\u003c\/p\u003e\n\u003cp\u003e6. Bandwidth: 20HZ- 35KHZ(-1DB)\u003c\/p\u003e\n\u003cp\u003e7. Size(W*H*D): 86*88*75mm\u003c\/p\u003e\n\u003cp\u003e8. Weight: 1.9kg\/pc\u003c\/p\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14px;\"\u003eApplication with the output transformer\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp align=\"center\" style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1tH_HyYSYBuNjSspfq6AZCpXaL.jpg\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\"\u003e\u003c\/div\u003e\n\u003cp align=\"center\" style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1ghG1iL6TBKNjSZJiq6zKVFXaQ.jpg\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch2\u003e\u003cu\u003e2.5k for tube 2A3\u003c\/u\u003e\u003c\/h2\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cp\u003eVacuum tube 2A3 is a mysterious direct heat tube. Many audiophile use this tube as the end of the life. Because of its linearity and internal resistance, everything is not inferior to the famous 300B tube except the power. More tube audiophile do not hesitate to purchase an expensive British Rhode full-range speaker, or high-sensitivity horn speaker, etc. in order to complement the weaknesses of low power only. The reason is very simple, 2A3 is easier than 300B to make a good voice, because 2A3 drive signal is only need 40V, lower the threshold for the boost signal of preamplifier, and the output load impedance is only 2.5K ohms, and then the output design is also relatively easy to 300B. We special design the output transformer for the vacuum tube 2A3 now with C type structure.\u003c\/p\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"start\" style=\"font-family: 'Open Sans', Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; font-weight: 400; letter-spacing: normal; line-height: inherit; text-align: start; white-space: normal; color: #000000; background-color: #ffffff; margin: 0px; padding: 0px; box-sizing: border-box;\"\u003e1. Power: 3.5W\u003c\/p\u003e\n\u003cp align=\"start\" style=\"font-family: 'Open Sans', Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; font-weight: 400; letter-spacing: normal; line-height: inherit; text-align: start; white-space: normal; color: #000000; background-color: #ffffff; margin: 0px; padding: 0px; box-sizing: border-box;\"\u003e2. Material: British amorphous 8C advanced core\u003c\/p\u003e\n\u003cp align=\"start\" style=\"font-family: 'Open Sans', Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; font-weight: 400; letter-spacing: normal; line-height: inherit; text-align: start; white-space: normal; color: #000000; background-color: #ffffff; margin: 0px; padding: 0px; box-sizing: border-box;\"\u003e3. Primary impedance: 2.5k ohms\u003c\/p\u003e\n\u003cp align=\"start\" style=\"font-family: 'Open Sans', Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; font-weight: 400; letter-spacing: normal; line-height: inherit; text-align: start; white-space: normal; color: #000000; background-color: #ffffff; margin: 0px; padding: 0px; box-sizing: border-box;\"\u003e4. Secondary impedance: 0-4-16 ohms\u003c\/p\u003e\n\u003cp align=\"start\" style=\"font-family: 'Open Sans', Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; font-weight: 400; letter-spacing: normal; line-height: inherit; text-align: start; white-space: normal; color: #000000; background-color: #ffffff; margin: 0px; padding: 0px; box-sizing: border-box;\"\u003e5 Inductance: 11H\u003c\/p\u003e\n\u003cp align=\"start\" style=\"font-family: 'Open Sans', Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; font-weight: 400; letter-spacing: normal; line-height: inherit; text-align: start; white-space: normal; color: #000000; background-color: #ffffff; margin: 0px; padding: 0px; box-sizing: border-box;\"\u003e6. Bandwidth: 28HZ- 45KHZ(-1DB)\u003c\/p\u003e\n\u003cp align=\"start\" style=\"font-family: 'Open Sans', Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; font-weight: 400; letter-spacing: normal; line-height: inherit; text-align: start; white-space: normal; color: #000000; background-color: #ffffff; margin: 0px; padding: 0px; box-sizing: border-box;\"\u003e7. Size(W*H*D): 88*75*95mm\u003c\/p\u003e\n\u003cp align=\"start\" style=\"font-family: 'Open Sans', Roboto, Arial, Helvetica, sans-serif, SimSun; font-size: 14px; font-weight: 400; letter-spacing: normal; line-height: inherit; text-align: start; white-space: normal; color: #000000; background-color: #ffffff; margin: 0px; padding: 0px; box-sizing: border-box;\"\u003e8. Weight: 1.75kg\/pc\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cbr\u003e   \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/H2d940ba9365340518c4dc37fd1345ff0n.jpg\" style=\"float: none;\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\"\u003e\u003c\/div\u003e\n\u003cdiv align=\"center\" style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"float: none;\" src=\"https:\/\/ae01.alicdn.com\/kf\/H380056f41f9046eab8f9ece0465441f97.jpg\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/ae01.alicdn.com\/kf\/Hf78153042784428fa20317a6f9215dba3.jpg\" style=\"float: none;\" referrerpolicy=\"no-referrer\" slate-data-type=\"image\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"PR 2.5K","offer_id":39651954720883,"sku":"WVTR-OT235k-16(8C)-2.5","price":84.9,"currency_code":"USD","in_stock":true},{"title":"PR 3.5K","offer_id":39651954753651,"sku":"WVTR-OT235k-16(8C)-3.5","price":84.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-Output-Transformer-C-Type-Single-ended-British-Amorphous-8C-Advanced-Core-Pr-2-5-3.jpg?v=1639206495"},{"product_id":"iwistao-tube-amplifier-30w-output-transformer-1-pair-z11-single-ended-silicon-steel-2-5-3-5k-british-bracket-diy-hifi-audio","title":"IWISTAO Tube Amplifier 30W Output Transformer 1 Pair Z11 Single-ended Silicon Steel  2.5\/3.5K 300B KT88 2A3 British Bracket DIY HIFI Audio","description":"\u003cdiv class=\"detailmodule_html\"\u003e\n\u003cdiv class=\"detail-desc-decorate-richtext\"\u003e\n\u003ch1 style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 18px;\"\u003eIWISTAO Tube Amplifier 30W Output Transformer 1 Pair Z11 Single-ended Silicon Steel 2.5\/3.5K 300B KT88 2A3 British Bracket DIY HIFI Audio\u003c\/span\u003e\u003c\/h1\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003ch2 style=\"line-height: 15.75pt;\"\u003e\n\u003cspan style=\"font-family: arial, sans-serif;\"\u003e\u003cspan style=\"font-size: 18px;\"\u003eModel No: \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 10.5pt; font-family: DengXian;\"\u003e\u003cspan\u003eWVTO-OT30-235K\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n \n\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eAdopt High silicon annealing 0.35EI dedicated audio chips. \u003c\/span\u003eHigh quality thick nylon frame and high quality Japan Z11 annealed silicon steel flux H50.\u003c\/p\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\n\u003cp\u003eAapplicable for tube 300B, KT88, 2A3.\u003c\/p\u003e\n\n\u003cp align=\"center\" style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\n\u003cdiv style=\"text-align: center;\"\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/A6df9e4c259534864a7d020b15c1c52d2w.jpg\" style=\"float: none;\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\n\u003cdiv style=\"text-align: center;\"\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/A7ec68bcf4e2c4e57b9cbf976c08623c10.jpg\" style=\"float: none;\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\n\u003ch2\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cp\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e1. \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 14px; font-family: arial, helvetica, sans-serif;\"\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003ePrimary impedance : 2.5K \/ 3.5K \u003c\/span\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e2. \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003eSecondary : 0 - 4 - 8 ohms\u003c\/span\u003e\u003c\/u\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e3. Frequency: 20-30K Hz (-2dB)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-family: arial, helvetica, sans-serif;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e4. C\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 14px;\"\u003eore EI96\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e6. Vertical installation with British bracket solder taps\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003e7. Weight: 6kg \/ pair\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp align=\"center\" style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\n\u003cdiv style=\"text-align: center;\"\u003e\u003cdiv\u003e\u003cimg referrerpolicy=\"no-referrer\" slate-data-type=\"image\" src=\"https:\/\/ae01.alicdn.com\/kf\/HTB1MQloXfWG3KVjSZFgq6zTspXab.jpg\" style=\"float: none;\"\u003e\u003c\/div\u003e\u003c\/div\u003e\n\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":40569910493299,"sku":"WVTO-OT30-235K","price":149.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/IWISTAO-Tube-Amplifier-30W-Output-Transformer-1-Pair-Z11-Single-ended-Silicon-Steel-2-5-3.jpg?v=1668137642"},{"product_id":"iwistao-output-transformer-c-type-single-ended-british-amorphous-8c-advanced-core-pr-5k-with-3-5k-tap","title":"IWISTAO Output Transformer C Type Single-ended British Amorphous 8C Advanced Core Pr 5K with 3.5K Tap","description":"\u003ch1 style=\"text-align: center;\"\u003eIWISTAO Output Transformer C Type Single-ended British Amorphous 8C Advanced Core Pr 5K with 3.5K Tap Se 0-4-8 ohms\u003c\/h1\u003e\n\u003cp\u003e\u003cbr\u003eModel No: WVTR-OT355k(8C)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eThis single-ended output transformer uses British amorphous high-grade C-type iron core that has a unique advantage, especially when its static operating point is 80ma or below , it can give full play to the advantages of the output transformer. After actual measurement and listening, the voice is very vivid, clear, low-frequency tension is very balanced in three bands, excellent permeability and atmosphere feeling.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;\"\u003eUsing high-quality enameled wire, lamination process, CNC drying, vacuum impregnation, well-designed 8C structure, to design to a perfect coefficient.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;\"\u003eSpecially, its primary is 5K but with 3.5K tap. 3.5k is for tube 300B, and 5k is for  tube 6P1 6P14 EL84 6P6P 6V6. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-family: -apple-system, BlinkMacSystemFont, 'San Francisco', 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;\"\u003eIt is a better choice to tube amplifier audiophiles.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePS: A stereo tube amplifier need 2 pcs output transformers.\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WVTR-OT355K_8C_3l.jpg?v=1682586097\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cimg style=\"float: none;\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WVTR-OT355K_8C_4l.jpg?v=1682586097\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WVTR-OT355K_8C_2l.jpg?v=1682586097\" alt=\"\" data-mce-fragment=\"1\"\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e1. Power: 8W\u003c\/p\u003e\n\u003cp\u003e2. Material: British amorphous 8C advanced core\u003c\/p\u003e\n\u003cp\u003e3. Primary impedance: 5K ohms with 3.5k ohms (80-100ma) tap\u003c\/p\u003e\n\u003cp\u003e4. Secondary impedance: 0-4-8 ohms (16 ohm output can be ordered)\u003c\/p\u003e\n\u003cp\u003e5 Inductance: 16-17H\u003c\/p\u003e\n\u003cp\u003e6. Bandwidth: 20HZ- 35KHZ(-1DB)\u003c\/p\u003e\n\u003cp\u003e7. Size(W*H*D): 86*88*75mm\u003c\/p\u003e\n\u003cp\u003e8. Weight: 1.9kg\/pc \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e \u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14px;\"\u003eApplication with the output transformer (the photos only for you information)\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVT-OT300B(8Ca2l\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1tH_HyYSYBuNjSspfq6AZCpXaL.jpg\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"WVT-OT300B(8Ca5\" src=\"http:\/\/ae01.alicdn.com\/kf\/HTB1ghG1iL6TBKNjSZJiq6zKVFXaQ.jpg\"\u003e\u003c\/p\u003e\n\u003cdiv style=\"clear: both;\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Default Title","offer_id":40804262183027,"sku":"WVTR-OT355k(8C)","price":89.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WVTR-OT355K_8C_3l.jpg?v=1682586097"},{"product_id":"iwistao-22w-amorphous-c-type-core-push-pull-output-transformer-8k-for-vacuum-tube-6l6-6p6p","title":"IWISTAO 22W Amorphous C Type Core Push-pull Output Transformer 8K for Vacuum Tube 6L6 6P6P","description":"\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2 style=\"padding: 5.0px; text-align: center;\"\u003eIWISTAO 22W Amorphous C Type Core Push-pull Output Transformer Pr 8K Se 0-4-8 Ohms for Tube Amplifier 6L6 6P6P\u003c\/h2\u003e\n\u003ch1 style=\"text-align: center;\"\u003e \u003c\/h1\u003e\n\u003ch2\u003eModel No: WVTR-OTPP22W(4C)\u003c\/h2\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eThis pull-push output transformer uses British amorphous high-grade C-type iron core that has a unique advantage. After actual measurement and listening, the voice is very vivid, clear, low-frequency tension is very balanced in three bands, excellent permeability and atmosphere feeling\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14px;\"\u003eUsing high-quality enameled wire, lamination process, CNC drying, vacuum impregnation, well-designed 4C structure, to design to a perfect coefficient.\u003c\/span\u003e\u003cbr\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eIt is a better choice to tube amplifier audiophiles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTR-OTPP12W_4C_04_a5836fe3-cdaa-40c8-975d-a11f0ee89e4e.jpg?v=1538297496\"\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTR-OTPP12W_4C_02_4dda366c-3fdf-4880-a674-b185d40efdb5.jpg?v=1538297496\"\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTR-OTPP12W_4C_03_0252ee24-070c-4291-9efc-c7e67076a1b8.jpg?v=1538297496\"\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTR-OTPP12W_4C_01_949a60c6-66e3-4e4d-8436-8946164cb9ff.jpg?v=1538297496\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cspan style=\"font-size: 14.0px;\"\u003ePS: A stereo tube amplifier need 2 pcs output transformers.\u003c\/span\u003e\u003c\/span\u003e\u003c\/u\u003e\u003c\/p\u003e\n\u003cp\u003e  \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/products\/WVTR-OTPP12W_4C_479176e2-f0ad-4138-b857-8f81feb95314.jpg?v=1538297496\"\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"font-size: 14.0px;\"\u003eSpecifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e1. Power: 22W\u003c\/p\u003e\n\u003cp\u003e2. Material: British amorphous 4C advanced core\u003c\/p\u003e\n\u003cp\u003e3. Primary impedance: 8k ohms \u003c\/p\u003e\n\u003cp\u003e4. Secondary impedance: 0-4-8 ohms (16 ohm output can be ordered)\u003c\/p\u003e\n\u003cp\u003e5. Bandwidth: 20HZ- 40KHZ(-1DB)\u003c\/p\u003e\n\u003cp\u003e6. Size(W*H*D): 98*84*84mm\u003c\/p\u003e\n\u003cp\u003e8. Weight: 1.35kg\/pc \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cspan style=\"visibility: hidden;\" data-id=\"1705222711000\" id=\"cnki_grabber\"\u003e\u003c\/span\u003e\n\u003cdiv style=\"position: absolute; left: 20px; top: 22.1875px;\" id=\"gtx-trans\"\u003e\n\u003cdiv class=\"gtx-trans-icon\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"Within UL Tap","offer_id":41405157998707,"sku":"WVTR-OTPP22W(4C)-UL","price":94.9,"currency_code":"USD","in_stock":true},{"title":"Without UL Tap","offer_id":41405158031475,"sku":"WVTR-OTPP22W(4C)-NUL","price":89.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WVTR-OTPP12W_4C_01_51796cac-c831-44be-aaca-0911bb723632.jpg?v=1709696758"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/collections\/WVTR-OT5_2_800X800.jpg?v=1495638732","url":"https:\/\/iwistao.com\/en-au\/collections\/output-transformers\/single-ended-output-transformer.oembed","provider":"IWISTAO HIFI MINIMART","version":"1.0","type":"link"}