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Re: ~Coil Size [ Maxwell caps ]




From: 	Geoffrey Schecht[SMTP:geoffs-at-onr-dot-com]
Sent: 	Saturday, September 06, 1997 10:06 AM
To: 	Tesla List
Subject: 	Re: ~Coil Size

Where can you get those Maxwell caps from (surplus?) and what's the cost?
I'd rather buy them than roll my own.

Geoff

> 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
> 
> 
>