Tube Amp Archive

Jumping into this thread while chasing an issue in my own build...

Can you explain in more detail ideas about how the changes you made solved the problem? Was the original resistor just noisy or was it something you did with the ground locations?

zombie thread, but.... Did you ever confirm that the tube rec was the source of the mystery distortion/fizz? And, were the 100r resistors still necessary after changing the tube rec? @arjepsen

Sounds great, and the switchable channels is a really nice touch.

Thanks for sharing some pics

Thanks for this thread and fun schematic! I am curious, what are you doing for the negative feedback circuit? And is the second volume control is 1meg? I built a similar version as close as I could get with parts on hand, and it sounds great so far... Gonna keep tweaking and see what I can come up w...