N° of component 

Simple Audio Amplifier (CB258E)

This direct-coupling three-transistor amplifier source some watts to a loudspeker when powered from voltage sources between 3 and 12 V. Then using 9 to 12 V sources the transistor Q3 must be mounted on a heatsink. This a volume control and depending on the signal source R1 must be altered to best performance. Input impedance is very high,






Circuit Bench