Quote:
Originally Posted by Jon A.
Forgot to say before, I didn't know convergence pots could just up and quit because they seem pretty sturdy and aren't moved much. I have a few from a set I couldn't save, but I kept them mostly for their knobs. I don't see a way to separate the knobs, but I had one break off in another set. It was discolored, probably decayed by heat. If any more had broken I probably would have replaced the pots. A small screwdriver was sufficient in this case.
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Convergence pots are wire wound typically, and if they got adjusted regularly (annual service touch up for 15 straight years?) dead spots, and the wire unwrapping it's self are not uncommon. I've got 3-5 sets I know have had those issues. One or two saw bad storage conditions the rest just failed, and control cleaner don't help....Especially on unwrapped pots where while turning you can hear the bad spot as tiny strings being plucked...
The dead spots typically like to be right at optimal setting too.