0:23 Why Bobo Noise Happened in my newly designed USB Audio Amplifier? Liu Charles 109 views - 2 years ago
1:28 DIY Class AB amplifier (TTC5200+ TTA1943+ 2SC4793 + 2SA1837 + NE5532) Liu Charles 436 views - 2 years ago
7:14 Schematics Drawing of a Single-ended input to Differential output Op-Amp Circuit Liu Charles 107 views - 2 years ago