On Sep 18, 10:28*am, GeneO wrote:
Have been Googling the proper way to clean plated electrical contacts
but either get nothing if use " or a lot of nonrelevant hits without.

Am interested in any suggestions esp how to remove the nonconductive
oxides.

If a connector is too damaged would also be interested in what are
considered the best type replacement.

Thanks

Gene

I have had very good luck repairing low current relay contacts and
mechanical rotary switches using "tarn-x" silver cleaner containing
acidified thiourea. MSDS: http://www.jelmar.com/msds/TX_MSDS_eng.pdf.
If you take the relay or switch apart to get to the contacts, use a
cotton swab with a small amount of cleaner and apply to the oxidized
(tarnished) surfaces. They shine right up and the surface does not
appear to be damaged by it. Then dry and apply a very light film of
silicone based contact cleaner to keep the air away and help with
lubrication. Works great for speaker relays in amplifiers and mode
switches for VCR's.

Scott