The RP25 I repaired yesterday was the one I had sold him. It had been working perfectly for the 2 or 3 years that I had it, but failed, completely dead, a couple of months after he bought it.
The problem turned out to be the on/off switch, it was still making a nice loud click but was not connecting. The 2 moving contacts on this DPST (Double Pole Single Throw) switched pot are pins held in a moulding which swings back and forth actuated by a spring connected to another leaver moved by the spigot on the end of the volume control.
The end pin (contact) had broken away and the broken corner of the plastic had lodged in such a position so it stopped the contact arm from fully swinging over and hence no contact was making.
Prised out the broken bits and it was all working OK again, it is only wired as a single pole switch so just the one set of contacts is needed..
Mike
The problem turned out to be the on/off switch, it was still making a nice loud click but was not connecting. The 2 moving contacts on this DPST (Double Pole Single Throw) switched pot are pins held in a moulding which swings back and forth actuated by a spring connected to another leaver moved by the spigot on the end of the volume control.
The end pin (contact) had broken away and the broken corner of the plastic had lodged in such a position so it stopped the contact arm from fully swinging over and hence no contact was making.
Prised out the broken bits and it was all working OK again, it is only wired as a single pole switch so just the one set of contacts is needed..
Mike
