• 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.

Audio Innovation Series 500 power supply

I found my old drawings from 1989, when we built them;
The colour codes will be near it but not a problem with a decent meter to check the resistances of the windings. They are not phase sensitive.
 

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