• 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.

Priboj with other tubes

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Your project is succesful and so far the first Priboi modification that I have seen where the original power level is increased. Those different GM-50 etc. modifications are very far from the performance of yours.

It would be interesting to make thorough tests for your Priboi.
 
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