• 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.

PSUD 6C6 2A3 amp

Well, I'm posting a question to receive some suggestions or more specific help, but I understand that some things are more for fixing alone.
But my knowledge is not advanced enough to do something so precise, so I will leave the power supply as is, and continue learning.