It’s a 100-watt amplifier circuit diagram using transistors. Here, we can use any of the PNP and NPN transistors. 2sc5200 and 2sa1943 are used here. It’s a mono board. A positive ground and a negative voltage are required for this circuit. We can use a minimum 25-0-25 voltage to 50-0-50 voltage. The stereo needs dual circuits.

All resistors are 1/2 watts. mje340 and mje350 are driver transistors. These transistors also need a heatsink. So, uses 2 small heatsinks for the driver transistors. We can also change the driver transistors.
PCB Power Amplifier 1000Watt:
This is the PCB power amplifier, 1000W. This circuit can make 1000 watts using 8 transistors. Here, use 2sc5200 and 2sa1943 transistors. This pair of transistors can produce a maximum of 150 watts. We can use 50-0-50 voltage. We can use any of the PNP and NPN transistors.
Details about 2SA1943
2sa1943 Polarity is PNP. The maximum collector power dissipation is 150 Watts. The maximum collector-base Voltage is 250 volts. Max Collector-Emitter Voltage is 250V. The Max Emitter-Base Voltage is 5V. The Maximum Collector Current is 17 amperes.
Details about 2SC5200
2sc5200 Polarity is NPN. The maximum collector power dissipation is 150 Watts. The maximum collector-base Voltage is 250 volts. Max Collector-Emitter Voltage is 250V. The Max Emitter-Base Voltage is 5V. The Maximum Collector Current is 17 amperes.

Every amplifier needs a speaker protection circuit. This circuit also needs a speaker protection circuit to protect the speaker. If any cause the circuit to burn, then the voltage can’t burn the speakers. Here is the circuit diagram.

You can visit this protection circuit.
1000 Watts amplifier circuit diagram pdf:
1000 Watts amplifier circuit diagram pdf, in this circuit, there is 1000 watts. In this circuit, we can use 10 transistors. TTC5200 and TTA1943. 5 are TTC5200, and another 5 are TTA1943. TTC5200 is an NPN transistor, and TTA1943 is a PNP transistor. We know that Voltage X Amperes = Watts. So here we can use 70 volts maximum. This transistor can take 1.3 amperes. So here in this circuit, we can use 10 transistors. Then 10 X 1.3= 13 amperes. Here in this circuit, if we use 15 amperes and 70 volts. Then how many watts do we have? As voltage X amps = Watts, then our voltage is 70 and amperes is 15. So 70 X 15= 1050 Watts. From this circuit, we can get a maximum of 1000 Watts.
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