I have a Chinese made telephone with a hook switch that is generating a ton of noise. Disassembly revealed a DPDT switch made by having the top of U shaped phosphor bronze contact springs sliding along the sides of tin/silver coated brass contact tabs.
I have given it thorough clean and need to know what, if any, lubricant should be used on the contacts before I reassemble it.
Help appreciated, John.
ton
tin/silver
Assuming now clean, phosphor bronze should not need lubricating. Perhaps neachanically add, by bending or something, some extra spring action (something less than handset weight of course)
-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on
I did bend some extra tension into the spring action. It is now assembled dry and so far so good.
Many thanks for the advice, John.
You can use a specialised contact-cleaner, but a *tiny* squirt of WD-40 should work fine.
Well, there you go.
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