• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

THE CHAMP CBA-20807 1000 Watt Valve amplifier

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Just saw this on hackaday, wow, what can I say....

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The Champ CBA-20807 1000 Watt Amplifier - Part 1

The amp is based on 807 valves. With some clever engineering [John] managed to coax 100 watts out of a pair of 807s, so the entire amp “only” requires 20 power tubes.
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