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 have a pair of ecc81's and a pair of ecc83's.Has anyone got a schematic using either or both of these for a preamp.I also have some trannies from 470vct@60mA to 600vct @250mA to use.Any suggestions?