Power Amplifier :
Power Amplifier OCL 50W by 741+
2N3055+MJ2955(with PCB)
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Circuit Power Amp OCL by 741+2N3055+MJ2955
This is old circuit Power amp OCL, But easy circuit and very nice.
To use for play music in your home. It low cost too. It use IC 741 or LF351(good)
and Transistor x 4 (2N3055+MJ2955+BD139+BD140)
and little component. Power supply volt +35V/-35V
and 3A for Mono, 5A for Stereo.
PCB Power Amp OCL by 741+2N3055+MJ2955