Greetings!
im new here to this forum but not new to looking into amps. I’m set up pretty good to troubleshoot and understand the safety of working inside. I have run into a Blues Jr (cream board) that I can not figure out. At any volume it is sounding like it’s being overdriven/distorted. My test point voltages look good. Installed the following: tamed the bias, tone mod, replaced all plate resistors, replaced IC electrolytics with F&T (kept it at 47uF), switchcraft input jack, new tubes, new reverb tank, tried connecting a new speaker (no change), replaced OT with known working tranny on a whim. Still, the amp sounds overdriven at low volume especially with bass notes but is present with the higher notes as well. Don’t know where else to look. Please help.
Thanks!!
reconbrad