Re: air variable capacitor

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "S & J Young by way of Terry Fritz <twftesla-at-qwest-dot-net>" <youngs-at-konnections-dot-net>

Jesse,

Depending on the air gap between plates, it can be used in parallel with a
main tank cap to trim the capacitance (tune the primary tank circuit).  By
itself, it will only be a few hundred pF, not nearly enough to be a main cap
by itself.

If the plate spacing is fairly narrow (1/8 - 1/4 inch), then it probably
cannot withstand the typical 10-25 kV of high voltage developed in
disruptive (spark gap) TC tank caps.  It is probably better suited for a
VTTC as the tank cap voltages will be less.
--Steve
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Thursday, January 10, 2002 10:40 PM
Subject: air variable capacitor


> Original poster: "jesse hampton by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <zetoyoc-at-yahoo-dot-com>
>
> Hello,
>
> I have a large (18" X 6" X 6" aprox.) air variable
> capacitor.  My question is, how would this perform in
> TC operation as the main cap?  By the way this is not
> my coil it's going into but a vttc I know very little
> about. Could this variable cap handle the job? or do
> you need a bit more info and if so what?
>
> Thanks.
>
> Jesse
>
> __________________________________________________
> Do You Yahoo!?
> Send FREE video emails in Yahoo! Mail!
> http://promo.yahoo-dot-com/videomail/
>
>
>