[ARC5] Rusty Tuning Cap

[Robert Eleazer]

Any of y'all ever try to repair a rusty tuning cap?  I have an NC-270 I picked up and it has a bit of rust on the chassis.  Most of it is not a problem and I have treated it, but the main tuning cap is pretty rusty.

The cap plates are not rusty but the frame is, which I do not see as a big problem, except for the area on one end where the "wiper" is for the shaft.  That is so rusted that there is no way any decent electrical contact is occurring.  I doubt the feasibility of dismantling it and cleaning it up with insuring complete destruction.

I am checking on a replacement, but do any of y'all have any suggestions?

Thanks.

Wayne