Hi Tim,
Are you sure you want to lubricate the coil itself?
Such lubrication will attract dirt, causing intermittant operation.
That is why I used the term "Rotary Inductors" instead of "Roller
Inductors." In the case of variable inductors, which use a little wheel
which rolls on the inductor wire as the moving contact, I agree that it
would be better not to put any lubricant on the incuctor wire or the
outside of the wheel. Still I think the shaft which goes through the
axis of the wheel ought to have some kind of lubrication.
Also there are variable inductors which use a sliding contact, instead
of a rolling contact, such as the Johnson 226 series. I think that these
should have some lube too.
DE N6KB
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