If you are looking for Small PA amplifier circuit using transistors. This may be first choice for you. The output is 100 watts power, very loud and very durable, easy to builds. Is is real? Read more
This is three Simple 50w OTL audio amplifier circuit by 2N3055, can build easy and cheap, It’s durable and very loud sound , Not needed speaker Protection. […] Read more
This is TBA820m Amplifier circuit stereo 2W+2W, supply voltage 12V, Easy to build and cheap. on DIP-8pins same LM386. but TBA820M use easy better. […] Read more