rebuilding/cleaning switches

67Dart273 said
My ex-super, from the wheel chair joint, has been in electronics his whole life. Worked on everything you can imagine, consumer electronics, and some commercial 2 way radio., He recommends de-oxit. USE SPARINGLY, and what he does is to collect some in a small bottle so he can grab a bit with cotton swabs, etc, without spraying waste all over. I would "rinse" with tuner / switch/ contact cleaner, made by several outfits including CRC.

Grease I'd use dielectric grease made / intended for automotive use.

I have been cleaning thr boards and contacts with electric component spray (like thr WD40 electric contact cleaner) and if its "vegitated" those old boards will take a light wire wheel cleaning. I polish with Brasso as well if its pitted or really discolored.

I swear, i have yet to have a bad switch, once cleaned they have all worked well. The variable WW switch was a bear as you need to desolder a piece to get it apart safely, but all the rest have been relativly easy to restore.