Re: ~Coil Size

• To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
• Subject: Re: ~Coil Size
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Fri, 5 Sep 1997 23:42:41 -0500
• Approved: tesla-at-stic-dot-net

From: 	FutureT-at-aol-dot-com[SMTP:FutureT-at-aol-dot-com]
Sent: 	Friday, September 05, 1997 5:26 AM
To: 	tesla-at-pupman-dot-com
Subject: 	Re: ~Coil Size

In a message dated 97-09-05 10:11:02 EDT, you write:

<< 
> John Freau
> What sort of cap do you use and what is it's dimensions and what is it made
of.
 
> Thanks in advance
> Richard
  >>

Richard,

For the 42" spark, I use two .014uF caps in series for .007uF.
Polypropylene, Maxwell brand.
But homemade rolled polyethylene will give the same results.  The 
dimensions of the Maxwell caps are 4" x 6" x 8.5". (without the mounting
bolts which stick out about 0.5" on each end)   Each is rated
at 45kV (AC?).   I used what I had.  One .007uF cap rated at 30kV
AC would be adequate and would be smaller physically.  I should 
toss a vacuum quenched static gap onto that coil and see how much
the spark diminishes.

John Freau

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