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.
I,m looking at using tv diodes ,they all vary .
I found the 6CJ3 or 6CH3 are the ones to use large numbers a hard to get in the same value because there electrical values differ .