40w Transistor Amplifier Circuit Diagram. We only limit the sum of the feedback. Capacitor c6 is a bootstrap capacitor that hold the voltage across r9 nearly constant so that the current through r9 is independent of the amplifier output signal level in the audio band.

Transistors t4 t7 form a quasi complementary push pull output stage. Subwoofer amplifier 40w march 30 2014 description. Power transistors 2n 3055 or bd 182 has been used in the power output stage.

Transistors are turned off while working in the cut off region and turned on while working in the saturation region.

The circuit diagram of a single stage common emitter rc coupled amplifier using transistor is shown in fig1. An example is shown in the p3a amplifier project 3a q9 vr1 and r16. 40w transistor audio amplifier circuit with pc b. Power transistors 2n 3055 or bd 182 has been used in the power output stage.