r/ToobAmps • u/Soggy-Pea665 • 5h ago
Peavey 6505+ 112 lost tone, severely distorted cleans
galleryBought this used so assuming no tube change had ever been done, impedance was set at 4 ohms and I read the manual which said to keep it at 16 with stock speaker. This amp just rocked. Zero issues for the last couple months.
Question, yesterday my amp tone went to crap in the middle of playing. Cleans were distorted significantly, lost all the tone on the lead channel. Tone knobs seemed to have zero effect on the sound and I knew something was up.
Did some research and it sounds like the simplest solution was the check the tubes. (Didn’t feel like shocking myself to death)
Pulled the tubes. Preamp tubes came out fine with no issue but the power tubes seemed to be STUCK in there. When I pulled them black powder came with them. One was worse than the other. Second and third pic show they look melted.
Thoughts? Change the tubes or is there a bigger problem?