In article ,
mc wrote:
"David" wrote in message
...
labtech_one wrote:
You can use contact cleaner, or just plain ole WD40, spray and work
the control back and forth a few times to break loose the
'dirt' and then spray again to rinse it away. Wait about 1 hour,
for the spray to dry, before using the radio again. WD and some
contact cleaners are a) flamable and/or b) conductive

If the problem is good contact between the metal wiper and the carbon
or plastic resistive element, a little conductivity might not be a bad
thing.

I strongly recommend using the appropriate Caig product (available at Radio
Shack) rather than WD-40 or a solvent chosen at random. That will help
ensure that it stays clean and properly lubricated after the cleaner dries.

From the directions on their web site, "CaiLube MCL". I found it at the
local Fry's. MG Chemical's "Nu-Trol" works about the same. Lubricating
control cleaner seems to be the generic name.

I reserve the De-Oxit type stuff for cassette tape unit "Record"
switches, leaky battery holder terminals, VCR Mode Switches,
intermittent phone jack cutout switches, and the like where the
problem is cruddy metal-metal contacts.

Mark Zenier
Googleproofaddress(account:mzenier provider:eskimo domain:com)