Re: Main spark gap across one or both transformer legs?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Vardan <vardan01@xxxxxxxxxxxxxxxxxxxxxxx>

At 04:49 PM 10/3/2006, you wrote:
> Never use the resonant cap size? if the resonant cap size is 
> 0.0088uF  then how much higher or lower capacitance should I 
> go?    I was planing on doing about 0.0091 anyways

EEeeaakk!!  You want pi/2 x the 0.0088uF!!!

If you have a 9kV 30mA transformer and a static spark gap (pipe 
tubes, bolts, etc. as opposed to a sync motor rotary gap), You need a 
roughly 0.0133uF!!  The extra capacitance "loads down" the NST so it 
will not go over voltage.

We should probably start putting "never use" warnings on cap 
charts!!  I just fixed my document with a warning not to use resonant 
value caps ;-)))

http://hot-streamer.com/temp/FormulasForTeslaCoils.pdf  Version 3.3 now!

Cheers,

        Terry