• 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.

Power transformer rating


Paid Member
2009-10-16 9:31 pm
Cascade, Idaho
Do you think occasional peaks of 500ma DC could be had? I realize that running perhaps 250-300ma steady state current creates heat, but I'm guessing the worse that will happen with peaks of 500ma will be reduced voltage. The transformer will be feeding a bridge and then into a 500v voltage regulator.