How to free up wafer switches?

[Jack Crenshaw]

Over the last few months, I've bought up a ton of old Heath tube test gear.  Now that
most items have arrived, I'm discovering that many of the items have rotary wafer
switches that are either sticking or just plain stuck.  Anybody got any bright ideas for
how to get them working again?

At least one of the bad switches is in a VOM that prob'ly got connected to line voltage
while in ohms mode <ugh!>.  That one I can understand. But most of them are in things
like range switches where there is no appreciable current.

Thanks

Jack

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