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35W Amplifier circuit using NE540, 2N3055, MJ2955

35W Amplifier  circuit using NE540, 2N3055, MJ2955

35W Amplifier circuit using NE540, 2N3055, MJ2955

35W Amplifier circuit using NE540, 2N3055, MJ2955

This is a class C amplifier, this means, that a current must flow through the end transistors, even if there is no signal on the input. This current can be regulated with the 600Ω trimmer resistor. As this current incrases, the sound of the amplifier gets better, but the end transistors are more heating. But if this current decrases, the transistors are not heating so much, but the sound gets worse.