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Cleaning variac surfaces?



Original poster: "Terry Fritz" <teslalist-at-qwest-dot-net>

Hi All,

I have a few never used but older varaics with some tarnish on the bare 
wire winding surfaces that the brush rides on.  I was just wondering what 
the best thing to do there is.  ScotchBrite, 400 grit wet/dry , Pink Pearl 
eraser, leave it as is...?  Nothing bad, just a light spotty black tarnish.

Cheers,

	Terry