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Old 28th Apr 2009, 2:26 pm   #20
G8HQP Dave
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Join Date: Sep 2008
Location: Solihull, West Midlands, UK.
Posts: 4,872
Default Re: cleaning tuning capacitors

Quote:
Can I ask a simple question? Why?
It is generally reckoned among radio amateurs that a clean variable capacitor leads to a more stable oscillator. I guess the dielectric constant of dirt varies considerably with humidity and temperature. Not really a problem with domestic sets, except on higher SW frequencies. Done badly (e.g. distorted vanes, wobbly bearings), cleaning could make things worse so I would leave well alone on a domestic set apart from a quick blow or a very soft brush to get the loose stuff off.
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