In article ,
William Sommerwerck wrote:

Tuner cleaner might be designed to avoid damaging plastic parts in tuners,
whereas contact cleaner might be more "aggressive".

Some "tuner cleaner" I have used in years passed, also contained a
light lubricant (mineral oil, I think). Mechanical UHF television
tuners contained both rotary switches, and a whole bunch of tunable
reactive components (slug-tuned inductors?) which benefited by a bit
of lubrication.

I would get some red Cramolin (that's not what it's called any more -- can't
think of the name) and thoroughly clean the plug.

I understand that some Cramolin products are still available from the
original manufacturer in Germany.

Caig Labs used to import Cramolin into the U.S. and sell it under
their label. In more recent years, they've been selling DeOxIt, which
is a similar product (but not manufactured by the makers of Cramolin).

The makeup of Cramolin and DeOxIt products is, I believe, a trade
secret. I've read several reports which suggest that both types of
products contain oleic acid as the (or an) active ingredient, as this
has a long history of use as a metal and contact cleaner.

--
Dave Platt AE6EO
Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior
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