For contacts and switches we use a product called Cramolin, could be de-o it by another name but I don¡¯t think so. This is fairly slippery liquid. We put it on with a que-tip and scrub a bit then wipe off all excess. In the end there is clean gold with a layer of lubricant.
An aside about alcohol, one of the Systems we support is a missile test set used in several countries and the US. Installations range from 20 to 30 years and we have seen an interesting problem come up in the cannon connectors. These have been cleaned for years w/isopropyl and in humid environments have shown nearly 150 mV across the face of the connector. That is voltmeter applied to the rubber insulator on each side of a connector face. Needless to say this messes up sensitive readings, so I would use caution when cleaning with Isopropyl
Regards,
Stephen Hanselman
Datagate Systems, LLC
3107 North Deer Run Road #24
Carson City, Nevada, 89701
(775) 882-5117 office
(775) 720-6020 mobile
s.hanselman@...
www.datagatesystems.com
a Service Disabled, Veteran Owned Small Business
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On Feb 21, 2019, at 16:59, Jim Potter <jpotter@...> wrote:
That's the technique I used to clean seriously oxidized contacts on a 60 year old tube tester. DeOxit is great stuff. - Jim
