Tube Amp Archive

Thanks for the responses. I made the resistor changes tonight and man what an eye opener. It went from only slight breakup at high volume to almost immediate breakup. I am now officially been bitten by the mod bug. Have lots of reading to do and experimenting with resistor values to get a feel for h...

Was looking for a little help with making some changes to my 80s Fender Bassman 20. Nice little amp, but always wished it broke up more. I came across a post on an old forum and the following was suggested: 1. Replace the .001 cap across the 820k resistor after the treble pot with a jumper 2. If thi...