100W Amplifier circuit based on TDA7294 vu meter on a single PCB (LM3914), bass, treble tone controls for setting circuit (opamp 4558) and the supply circuit’s. The potency of tone control circuit wires soldered to the metal chassis to... Electronics Projects, Complete amplifier 100W TDA7294 "audio amplifier circuits, ic amplifier, tda7294 amplifier circuit, " Date 2019/08/03