10-19-2024, 05:48 PM
Further update: I can reproduce the symptoms mentioned, but only soon after power-on. Moving the master volume around might affect it, but I couldn't tell. So as a guess, it's heat-related and goes away after something warms up, and is somewhere in the first gain stage. Not sure if the master volume is involved yet or not. Thinking a can of freeze spray would be the next step, to see if I can force the issue some time after power-on.


