I have one that's in exceptional condition.. Except..

The volume control cuts in ands out and is scratchy. I tried the spray cleaner with no luck.

Any one know of a reputable place that could replace the pot and do a thorough inspection of the unit? (East Central Iowa.)

I have read about routine replacement of the Caps. How d I know I need to do that?

Other than the faulty VC, the unit sounds awesome.

Advice most welcome!

Lare