Tube Amp Archive

Thanks Martin. I will grab that and start again.

I may have found an error on the version 7 schematic in the Phase Inverter. I think there is a wire that is mistakenly connected between the C40 .022uF coupling cap and the R50 18k resistor. When that line is connected, the signals are in phase. With it removed, it is out of phase as it should be. C...

For anyone interested, if you would like to better understand the Manning/RColgan Bias mod, I used Falstad to model it. Pretty interesting to watch the simulation. I added a smoothing filter, not sure if it is needed or not, but ripple current looks to be gone. https://www.falstad.com/circuit/circui...