[morzh]

After having attached the line cord, I checked the switch and the volume pot again. That is, I did check the switch before. Intermittent. But it's the pot that is bad. Even after restoring the wiper to rheostat contact with Fafer lube, the rheostat itself is over 3M at the nominal of 350K.
I think, a call to Mark Oppat is going to happen.

[Arran]

Mike;
So if you check the resistance from end to end the volume pot reads 3 meg Ohm? I could see 1 meg maybe, if someone had changed the control, but something weird is going on, it would be more normal for the resistive element to wear out, which would men that the wiper would not make contact. If it were my set I would investigate, but then again I've had to clean out a lot of controls in farm battery radios so I'm not too concerned about breaking something.
Happy Christmas
Arran