2W Audio Amplifier Circuit based TIP31A/TIP32A

Here the 2W audio amplifier circuit which built based a couple of power transistor TIP31A and TIP32A. This is a mono transistored amplifier, built the similar circuit for stereo audio amplifier.

Components list:

R1,R2 = 33K 1/4W R3 = 33R 1/4W R4 = 15K 1/4W R5,R6 = 1K 1/4W R7 = 680R 1/4W R8 = 120R 1/2W R9 = 100R 1/2W Trimpot P1 = 10K Linear Potentiometer D1 = 1N4148 SPKR = 3-5 Watt / 8, 4 or 2 Ohm

C1,C2 = 10µF/63V C3 = 100µF/25V C4,C7 = 470µF/25V C5 = 47pF C6 = 220nF C8 = 1000µF/25V Q1 = BC560C Q2 = BC337 Q3 = TIP31A Q4 = TIP32A

2W Audio Amplifier Circuit based TIP31A/TIP32A source: http://www.redcircuits.com/Page33.htm