Power amplifier circuit diagram: This is the Power amplifier circuit diagram using transistors. This circuit can make RMS 100 watts. Here can use 25-0-25 voltage to 50-0-50 voltage. It’s a mono audio circuit. We can use here 2SC5200 and 2SA1943, and other NPN and PNP transistors. like C5198 and A1941. or like 2SC2922 and 2SA1216. … Continue reading Power amplifier circuit diagram