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.
Well that is a better circuit!
Increasing the B+ gets more current going at least, and the filaments can be run in series. Plus it is a more standard output transformer spec.
Probably need some >100dB speakers to get a decent sound level.
Where did you source this circuit? Anyone actually built it?
It's a guitar amp, where would it be without distortion? You can lower the gain of the preamp stages or eliminate one of the stages if you want to use it for hi-fi.
You can lower the gain of the preamp stages or eliminate one of the stages if you want to use it for hi-fi.