Re: Some wisdome needed!

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

Original poster: Cody Carse <cac619-at-earthlink-dot-net> 

Oops, yes definitely amps not volts. Sorry bout that one.

-----Original Message-----
From: Tesla list <tesla-at-pupman-dot-com>
Sent: Apr 20, 2004 8:38 PM
To: tesla-at-pupman-dot-com
Subject: Re: Some wisdome needed!

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com>


I suspect your 15 kV xmfr is a 30 mA current rating not a 30 mV(milliVolts).

Don't mess around with building your own.  Use the MMC caps --- the Geek
Group website has a chart that tells you how many to use in a single series
string.  The Geek Group caps are very durable and will serve you well.

For best output, even with a small coil, keep the sec. as large dia. as
possible.  A 4 inch dia. would be a good place to start with a height/dia.
ratio of 4.5:1 for the winding length.  26 or 28 AWG magnet wire is a good
range for this coil.

At this power level 2 spark gaps in series fashioned from carriage bolt
heads on insulators will work fine.  Keep the total gap to around 0.100"
while tuning with a variac to drive your xmfr.  After you find the resonant
point, then 0.180"-0.200" max (total for both gaps) will give you good
output.

Above all, have fun.

Dr. Resonance