Re: Air Caps

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

Original poster: "Marry Krutsch by way of Terry Fritz <twftesla-at-qwest-dot-net>" <u236-at-earthlink-dot-net>

Hi Terry, Cory!

	My physics teacher has a coil about 5 feet tall that puts out INTENSE
2.5 foot sparks (no toroid, uses a bolt as a top terminal), using a 20
pF primary cap (if my calculations are correct).  Two 18 by 18 inch
plates 3.5 inches apart, with air as the dielectric.  It puts out so
many sparks per cycle that it looks like the thing is on fire.

Winston



Tesla list wrote:
> 
> Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>
> 
> Hi Cory,
> 
> Usually the capacitance value of air caps (few hundred pF)is too small to
> be useful.  Some people put them in oil to increase the value and add
> dielectric stength.
> 
> Cheers,
> 
>         Terry
> 
> At 07:57 PM 2/14/2002 -0800, you wrote:
> >Hello all,
> >
> >Anyone here tried using air caps for their TC?  a
> >pretty big one would be needed for a large tesla coil
> >but hey other than that it sounds like a good
> >thing........ i dunno just wondering, i saw somone's
> >site who had them on theirs and was jw about their
> >effectiveness....
> >
> >Sincerely,
> >
> >Cory Roussel
> >
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