This circuit is a general purpose 10-W power audio amplifier for medium power amplifier or use a modulation in the AM transmitter. For higher power up to 30 W can be obtained by increasing the voltage and change the bias resistor value.
General Purpose 10 Watt Audio Amplifier Parts list : R1,R2 : 470 ohm R3,R4,R5 : 22k ohm R7,R8 : 100 ohm R9,R10 : 0.33 ohm R11 : 4.7 ohm VR1 : 250 ohm ( variable ) C1,C7 : 0.1uF C2 : 0.01uF C3 : 1uF/35V C4 : 470uF C5,C6 : 2200uF/35V D1,D2,D3 : 1N4002 T1 : 2N3904 T2,T4 : TIP41A T3 : 2N3055 T5 : MJE 2055 IC : 7812
