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[AMPS] Water dielectric?

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Subject: [AMPS] Water dielectric?
From: (Phil (VA3UX))
Date: Tue, 31 Jul 2001 08:27:19 -0400
At 05:09 AM 7/31/2001 -0700, Bill Turner wrote:

> >>  It seems, on the surface, that one could dip a small air variable in
> >>(pure) water and have a high voltage part with 80x the capacity of the
> >>original.
> >>
>Or, if not water, some non-conductive liquid.  Don't have a dielectric
>chart handy, but there must be something suitable.
>Interesting thought.

Transformer oil (or nearly any mineral oil) would work quite well.  The 
dielectric constant typically is just over 2.0, and the voltage insulating 
characteristics are excellent.  A good application would be for the tune 
cap on 160 or 80 meters : a 150 or 200 pf, 1000V air variable would become 
a 300 or 400 pf HV variable cap.


>Bill, W7TI
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