Re: Variable capacitor oxidation
Other useful implements [other than those described above] include ...... dental floss [preferably the flat/tape stuff]! This material is both fine and strong ..... and impregnated with a fine rouge-like abrasive [inmates are reputed to have cut through prison cell bars with it ..... but they have infinite 'time' {geddit?} and patience!].
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Red to red, black to black. Throw the switch and stand well back!
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