Fender Amp Footswitch with LEDs

By special request, a vintage Fender amp footswitch with LEDs. Power comes from a 9V inside, but a 2.1mm jack for pedalboard power could easily be added. 9V is disconnected from the circuit when the plug is taken out or when both switches are OFF.

This particular project did have a problem that turned out to be the cable. The amp would pop loudly when the reverb was on and the vibrato was toggled. After much fretting that I had somehow incompetently designed this box, I finally realized it was the cable that was at fault, and that others have reported this problem as well. I can't remember anymore if the cable was reissue cable or vintage cable. Either way, if you have a popping Fender footswitch, don't rule out the cable itself as a possible culprit.