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25W Audio Amplifier with Tube schematic diagram

Audio Amplifier with Tube

25W Audio Amplifier schematic diagram

25W Audio Amplifier with Tube schematic diagram

Here the 25 watt power audio amplifier circuit powered using tube circuit. The tube TR will amplify the input about 20 watt, dual Trafo should be gain up to 40w watt. You can use wide voltage range 12v – 20V to supply the power tube.