Can you open up one of the switches and try cleaning the contacts? If not
working now, what do you have to lose?

Bob



"rogaining keith" wrote in message
...
I have a Cotter Pre-amp circa 1982 that is in need of repair. The
interlocking push-button switches are failing. Does anyone know of
either 1) a place that repairs Cotter amps or 2) a supplier of the
switches used in the cotter pre-amp?