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Vincent Zhang | Aug 21, 2025
Building a Vintage Sound Power Amp with the 3AD56 Germanium Transistor
Vincent Zhang | Sep 03, 2026
2SA970 and 2SC2240 Are Obsolete: How to Choose Safe Modern Replacements
Vincent Zhang | Sep 16, 2025
The 833 (FU33) Vacuum Tube in High-Fidelity Amplifiers
Vincent Zhang | May 12, 2026
Fender Tube Guitar Amplifiers: The Complete Guide to Circuit, and Key Parts Replacement
Vincent Zhang | Apr 23, 2026
Bluetooth DAC Explained: How It Works, Codecs, and Hi-Fi Applications
Vincent Zhang | May 21, 2026
Fostex FE108-Sol vs FE126En: A Detailed Full-Range Driver Comparison
Vincent Zhang | Jun 26, 2026
The Complete Guide to Vacuum Tube Replacement: Types, Substitutes, and When to Replace
Vincent Zhang | Mar 20, 2026
The Complete Guide to Speaker Protection Circuits
Vincent Zhang | Nov 28, 2025
Understanding Key Loudspeaker Parameters(14): Loudspeaker Sensitivity (Characteristic Sensitivity)
Vincent Zhang | Oct 05, 2024
Tube Buffer Preamplifiers: Understanding the Classic Audio Technology
Vincent Zhang | Jan 28, 2026
The 3A5 Tube Line Preamplifier
Vincent Zhang | Jul 29, 2026
How to Choose the Right Vacuum Tube Amplifier Output Transformer (OPT)
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