20W + 20W stereo amplifier circuit diagram

Posted on Nov 10, 2015

20W + 20W of stereo amplifier consists of two complete, independent 20-watt RMS amplifier in bridge. The input source is brought into the shunt voltage amplifier, it is by R1,

20W + 20W stereo amplifier circuit diagram
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R2 and P1 thereof. Resistor R1 between the signal source and the ground provide a load resistance. Resistor R2 and potentiometer P1 binding signal. Signal through the same capacitor C1 and IC1 internal amplifier (+) input (pin 1) combined, where the signal is increased a lot. Capacitors C2 and other (B) of the internal amplifier IC1 (+) input to ground.

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