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Re: Oil caps

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>

Castor oil has a fairly high epsilon (Er) compared to mineral oil.  The
breakdown voltage, though, is the same as most other oils.  Check
http://home.earthlink-dot-net/~jimlux/hv/insulliq.htm where I have a tabulation
of some common liquids.

How far are the plates spaced on your variable caps?

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, May 04, 2002 11:40 AM
Subject: Re: Oil caps

> Original poster: "rob by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> I have some really big variable caps, maybe 2000pf or so.  I'm wondering
> what would happen if I mounted one vertically in a can filled with oil.
> I guess I'd get 2000pf x Er.  With Castor oil, I think that would be a
> 0.024uF variable cap.   Rob.  ps. What is the breakdown voltage/mil with
> Castor oil?
> Tesla list wrote:
> >