I've been using Craig Laboratory cleaners for 30 years. Every connector I mate is first cleaned with their RED contact cleaner formula, then lubed with their Blue contact preservative formula (or vice versa). Came with coarse plastic applicators for doing grody RCA connectors. Also used it on ANY (plain or gold) connectors in or on my cameras, computers, and automobiles. Except for forgotten batteries in various household and medical appliances, I never have any connectivity problems.
Betcha Radio Shack still carries it. But no more than 10 cent bets, please. On Nov 13, 2012, at 09:29 , Bruce Walker wrote: > I use an electronic contact cleaner spray which I apply with a Q-tip. > Hosa D5S-6 DeoxIT, by Caig Laboratories. > > Dirty hotshoe contacts (and battery contacts too; don't forget those) > are the source of practically all my flash misfires. It similarly > affects the radio trigger devices. > > I'd be leery of using isopropanol though. Better than nothing, but I > have found it may leave a non-conductive residue. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

