{"product_id":"iwistao-50w-1-piece-push-pull-tube-amplifier-output-transformer-z11-ei-core-5-5k-6k-for-2a3-300b-kt88-kt66-el34-6l6","title":"IWISTAO 50W 1 Piece Push-Pull Tube Amplifier Output Transformer Z11 EI Core 5.5KΩ \/ 6KΩ for 2A3 300B KT88 KT66 EL34 6L6","description":"\u003ch1 class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-outline-level: 1;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 24.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 18.0pt; mso-ligatures: none;\"\u003eIWISTAO 50W 1 Piece Push-Pull Tube Amplifier Output Transformer Z11 EI Core 5.5KΩ \/ 6KΩ for 2A3 300B KT88 KT66 EL34 6L6\u003c\/span\u003e\u003c\/b\u003e\u003c\/h1\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eModel No: WHFTR-PPOPT5K50W\u003c\/h2\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eThe \u003cb\u003eIWISTAO 50W Push-Pull Output Transformer\u003c\/b\u003e is designed for high-quality DIY vacuum tube power amplifiers using popular output tubes such as \u003cb\u003e2A3, 300B, KT88, KT66, EL34, 6CA7, 6L6, and 5881\u003c\/b\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eBuilt around a large \u003cb\u003e96 × 50 mm laminated EI core\u003c\/b\u003e using Japanese \u003cb\u003eZ11 0.35 mm silicon steel\u003c\/b\u003e, the transformer is engineered for excellent low-frequency power handling, wide bandwidth, low insertion loss, and stable push-pull operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"line-height: normal; text-align: center;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WHFTR-PPOPT50W_1.jpg?v=1789955244\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eWith a rated continuous output of \u003cb\u003e50W at 30Hz\u003c\/b\u003e, it is particularly suitable for serious Hi-Fi tube amplifier projects where output transformer bandwidth and core capacity are critical to overall sound quality.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-outline-level: 2;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 18.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eFour Options\u003c\/span\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003ctable class=\"MsoNormalTable\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\" width=\"100%\" style=\"width: 100.0%; border-collapse: collapse; border: none; mso-border-alt: solid windowtext .75pt; mso-yfti-tbllook: 1184; mso-padding-alt: 8.0pt 8.0pt 8.0pt 8.0pt;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"mso-yfti-irow: 0; mso-yfti-firstrow: yes;\"\u003e\n\u003ctd nowrap style=\"border: solid windowtext 1.0pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" align=\"center\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: center; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eOption\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd nowrap style=\"border: solid windowtext 1.0pt; border-left: none; mso-border-left-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" align=\"center\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: center; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003ePrimary Impedance\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd nowrap style=\"border: solid windowtext 1.0pt; border-left: none; mso-border-left-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" align=\"center\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: center; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eInsulation Material\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd nowrap style=\"border: solid windowtext 1.0pt; border-left: none; mso-border-left-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" align=\"center\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-align: center; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eFrequency Response\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"mso-yfti-irow: 1;\"\u003e\n\u003ctd nowrap style=\"border: solid windowtext 1.0pt; border-top: none; mso-border-top-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e50-A Standard\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd nowrap style=\"border-top: none; border-left: none; border-bottom: solid windowtext 1.0pt; border-right: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e5.5KΩ\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd nowrap style=\"border-top: none; border-left: none; border-bottom: solid windowtext 1.0pt; border-right: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eJapanese Miki Insulation Paper\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd nowrap style=\"border-top: none; border-left: none; border-bottom: solid windowtext 1.0pt; border-right: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e3Hz–75kHz (-3dB)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 2;\"\u003e\n\u003ctd nowrap style=\"border: solid windowtext 1.0pt; border-top: none; mso-border-top-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e50-A DuPont\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd nowrap style=\"border-top: none; border-left: none; border-bottom: solid windowtext 1.0pt; border-right: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e5.5KΩ\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd nowrap style=\"border-top: none; border-left: none; border-bottom: solid windowtext 1.0pt; border-right: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eUSA DuPont Insulation Paper\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd nowrap style=\"border-top: none; border-left: none; border-bottom: solid windowtext 1.0pt; border-right: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e3Hz–75kHz (-3dB)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 3;\"\u003e\n\u003ctd nowrap style=\"border: solid windowtext 1.0pt; border-top: none; mso-border-top-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e50-B Standard\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd nowrap style=\"border-top: none; border-left: none; border-bottom: solid windowtext 1.0pt; border-right: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e6KΩ\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd nowrap style=\"border-top: none; border-left: none; border-bottom: solid windowtext 1.0pt; border-right: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eJapanese Miki Insulation Paper\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd nowrap style=\"border-top: none; border-left: none; border-bottom: solid windowtext 1.0pt; border-right: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e3Hz–62kHz (-3dB)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"mso-yfti-irow: 4; mso-yfti-lastrow: yes;\"\u003e\n\u003ctd nowrap style=\"border: solid windowtext 1.0pt; border-top: none; mso-border-top-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e50-B DuPont\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd nowrap style=\"border-top: none; border-left: none; border-bottom: solid windowtext 1.0pt; border-right: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e6KΩ\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd nowrap style=\"border-top: none; border-left: none; border-bottom: solid windowtext 1.0pt; border-right: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eUSA DuPont Insulation Paper\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd nowrap style=\"border-top: none; border-left: none; border-bottom: solid windowtext 1.0pt; border-right: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext .75pt; mso-border-left-alt: solid windowtext .75pt; mso-border-alt: solid windowtext .75pt; padding: 6.0pt 9.0pt 6.0pt 9.0pt;\"\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e3Hz–62kHz (-3dB)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eThe \u003cb\u003e50-A\u003c\/b\u003e version uses a \u003cb\u003e5.5KΩ primary\u003c\/b\u003e, while the \u003cb\u003e50-B\u003c\/b\u003e version uses a \u003cb\u003e6KΩ primary\u003c\/b\u003e, allowing the transformer to accommodate different tube types, operating points, and push-pull amplifier designs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eThe DuPont versions use upgraded \u003cb\u003eUSA DuPont insulation paper\u003c\/b\u003e in place of the standard Japanese Miki insulation paper.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-outline-level: 2;\"\u003e\n\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 18.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003ch2 class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-outline-level: 2;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 18.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eKey Features\u003c\/span\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul type=\"disc\"\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\n\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e50W continuous output power at 30Hz\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eDesigned for \u003cb\u003epush-pull vacuum tube amplifiers\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eSuitable for \u003cb\u003e2A3, 300B, KT88, KT66, EL34, 6CA7, 6L6, 5881\u003c\/b\u003e, and similar tubes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003ePrimary impedance options: \u003cb\u003e5.5KΩ or 6KΩ\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eSecondary output: \u003cb\u003e0–4Ω–8Ω\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eJapanese \u003cb\u003eZ11 0.35mm silicon steel EI laminations\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eLarge \u003cb\u003e96 × 50mm stacked core\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eImported British \u003cb\u003eoxygen-free copper winding wire\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eJapanese Miki insulation paper as standard (Optional upgraded \u003cb\u003eUSA DuPont insulation paper)\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eWide-bandwidth design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eVertical mounting with side covers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-list: l0 level1 lfo1; tab-stops: list 36.0pt;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eApprox. \u003cb\u003e3kg per piece\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-outline-level: 2;\"\u003e \u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-outline-level: 2;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 18.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eSpecifications\u003c\/span\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e1. Rated Output Power:\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e 50W continuous at 30Hz\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e2. Primary Impedance:\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e 50-A: \u003cb\u003e5.5KΩ\u003c\/b\u003e or 50-B: \u003cb\u003e6KΩ\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e3. Secondary Impedance:\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e \u003cb\u003e0–4Ω–8Ω\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-indent: 12.0pt; mso-char-indent-count: 1.0; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e(Other impedance configurations may be available upon request).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e4. Core Material:\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e Japanese Z11 silicon steel, 0.35mm laminations\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e5. Core Size:\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e 96 × 50mm EI laminated stack\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e6. Winding Wire:\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e Imported British oxygen-free copper\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e7. Standard Insulation:\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e Japanese Miki insulation paper\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-indent: 18.35pt; mso-char-indent-count: 1.5; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eOptional Insulation:\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e USA DuPont insulation paper\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e8. Frequency Response – 50-A:\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e3Hz–75kHz, -3dB\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; text-indent: 18.35pt; mso-char-indent-count: 1.5; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eFrequency Response – 50-B:\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e 3Hz–62kHz, -3dB\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003ci\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e(Frequency response measured with a 300B tube in-circuit, referenced to 0dB at 1kHz into an 8Ω load).\u003c\/span\u003e\u003c\/i\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e9. Mounting Style:\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e Vertical mounting with side covers\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e10. Weight:\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e Approx. 3kg \/ piece\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cstrong\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e11. Sizes:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"line-height: normal; text-align: center;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WHFTR-PPOPT50W_4.jpg?v=1789955244\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"line-height: normal; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WHFTR-PPOPT50W_2.jpg?v=1789955245\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"line-height: normal; text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WHFTR-PPOPT50W_3.jpg?v=1789955245\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-outline-level: 2;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 18.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eApplications\u003c\/span\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eThis transformer is suitable for custom and DIY \u003cb\u003epush-pull tube power amplifiers\u003c\/b\u003e, including designs based on 300B, 2A3, KT88, KT66, EL34, 6CA7, 6L6, and 5881 output tubes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eThe combination of a large Z11 EI core, oxygen-free copper windings, high primary-current capability, and wide frequency response makes it particularly suitable for Hi-Fi amplifier projects requiring \u003cb\u003estrong low-frequency performance, good transient response, and extended high-frequency bandwidth\u003c\/b\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-outline-level: 3;\"\u003e \u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan; mso-outline-level: 3;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 13.5pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003ePackage \/ Ordering Note\u003c\/span\u003e\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cb\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eThe displayed price is for ONE output transformer.\u003c\/span\u003e\u003c\/b\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eFor a stereo amplifier, please order \u003cb\u003e2 pieces\u003c\/b\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e\u003cspan lang=\"EN-US\" style=\"font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-ligatures: none;\"\u003eAn optional \u003cb\u003eblack resin-potted square cover\u003c\/b\u003e is also available at additional cost.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; line-height: normal; mso-pagination: widow-orphan;\"\u003e \u003c\/p\u003e","brand":"IWISTAO HIFI MINIMART","offers":[{"title":"50-A Standard","offer_id":48384682197107,"sku":"WHFTR-PPOPT5K50W-AS","price":132.9,"currency_code":"USD","in_stock":true},{"title":"50-A DuPon","offer_id":48384682229875,"sku":"WHFTR-PPOPT5K50W-AD","price":152.9,"currency_code":"USD","in_stock":true},{"title":"50-B Standard","offer_id":48384682262643,"sku":"WHFTR-PPOPT5K50W-BS","price":132.9,"currency_code":"USD","in_stock":true},{"title":"50-B DuPon","offer_id":48384682295411,"sku":"WHFTR-PPOPT5K50W-BD","price":152.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1105\/6138\/files\/WHFTR-PPOPT50W.jpg?v=1789955244","url":"https:\/\/iwistao.com\/en-gb\/products\/iwistao-50w-1-piece-push-pull-tube-amplifier-output-transformer-z11-ei-core-5-5k-6k-for-2a3-300b-kt88-kt66-el34-6l6","provider":"IWISTAO HIFI MINIMART","version":"1.0","type":"link"}