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Vincent Zhang | Dec 21, 2025
Clean Power, Pure Sound: Choosing the Right Rectifier and Filter for Your Hi-Fi Amp
Vincent Zhang | Mar 18, 2026
Winding Your Own Filter Choke for Tube Amplifiers-A More Rigorous Engineering Guide
Vincent Zhang | Sep 14, 2026
274A vs. 274B vs. 5U4G vs. 5R4GY vs. 5AR4/GZ34: Rectifier Guide for 300B Amplifiers
Vincent Zhang | Apr 21, 2026
Upgrading a Vintage Tube Radio to Stereo with the LA3401 FM MPX Decoder Board
Vincent Zhang | Jul 04, 2026
The 6N2 + Dual-FU19 Vacuum Tube Headphone Amplifier: A Technical Guide
Vincent Zhang | Apr 02, 2026
DIY 300B SET Stereo Amplifier: Circuit Design, Parts List and Step-by-Step Build Guide
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