• 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.

Gold mine of DI¥ audio tubes schematics from Japan

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Glad if You find it visit "Vintage Vanguard" inspiring.
Full analogue records have his unique charm from 50's era.
Was guessed what is a room number with the audio system You do want take it to Your Home?
 

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