"Review your solder work, that’s the #1 cause of hum besides worn cables, eventually the strands of wire inside them get brittle from age/use & breaks, believe it or not, this creates noise? But before you replace a capacitor, test the…"
"I recently had a build with a hum after everything was wired right. I isolated each component in the signal path, starting with the pickup, and worked my way to the output jack. The culprit was a leaky tone cap, which is typically a 25 cent part.…"