This is a 2SC5200 and 2SA1943 transistor amplifier circuit diagram. It’s a mono diagram. This circuit uses four transistors and can produce 200 watts. We can use a 25-0-25 voltage to a 60-0-60 voltage. positive, negative, and ground voltage. We can use another PNP and NPN transistor.    4-ohm audio output. Here, the driver transistor … Continue reading 2sc5200 and 2sa1943 transistor amplifier circuit