[R-390] Cleaning volume control

[ToddRoberts2001 at aol.com]

I have always had good luck over the years using the CAIG CaiLube  MCL
Moving Contact Lubricant that comes in the blue labeled can to  clean
and lubricate carbon pots with.  Give the pot a good shot through  the
open slot and flush it out well while working the control back and forth. 
Treated pots have been silent from then on. One 5 oz. can has
lasted me  well over 5 years and still going strong.

73 - Todd WD4NGG