04-16-2015, 03:21 PM
The volume control finally gave up the ghost last night. I was testing a homebrew cap in the motor circuit (yes, the motor did run better, faster.. it had been annoyingly slow) and turned the set off with the front panel control.. never came on again. The shaft just spins in the control without moving the innards. Apparently, this control has a sort of slip clutch mechanism inside to allow the shaft to spin once the control has reached either limit, so as not to damage the control if the motor is run for too long in either direction. It's not "clutching" well enough anymore, so it won't toggle the power switch. Oh well, the control was all sorts of flakey anyway, with lots of dead spots.
I've written Mark Oppat to see what he can come up with.. but I may just have to find a donor part. I've temporarily subbed in a 500K pot/switch and the volume goes up and down smoothly with no crackle. Unfortunately, the thing's got no loudness tap and is too low a value to allow the tone control to do anything.
I've written Mark Oppat to see what he can come up with.. but I may just have to find a donor part. I've temporarily subbed in a 500K pot/switch and the volume goes up and down smoothly with no crackle. Unfortunately, the thing's got no loudness tap and is too low a value to allow the tone control to do anything.
