07-29-2010, 10:13 PM
A long time ago we used to use a fresh $1.00 bill as a burnishing tool, whilst squeezing gently with a a needle nose pliers. I seem to remember the old master applying a little denatured alcohol before the procedure was performed, an the crud removed from the switch and a tiny amount of lithium grease placed on the shaft. Mind you what was before WD-40 and Deoxit. We used more ridiculous substances in those days to clean things.