Re: Tesla Coil toroid Size

To: tesla-at-pupman-dot-com
Subject: Re: Tesla Coil toroid Size
From: "Malcolm Watts" <MALCOLM-at-directorate.wnp.ac.nz> (by way of Terry Fritz <terryf-at-verinet-dot-com>)
Date: Wed, 16 Sep 1998 02:26:13 -0600
Approved: terryf-at-verinet-dot-com

Hi Bart,

> Original Poster: "Barton B. Anderson" <mopar-at-uswest-dot-net> 

<snip>
 
> Well, somethings driving long sparks, and we know the an
> undersized toroid decreases capable length. Also, in
> retrospec, how many times have we seen that a toroid was
> too large for a coil and a pointed object was placed on
> the toroid to promote breakout - and it worked. It would
> appear that a larger toroid requires more energy to
> breakout, not necessarily Vs. 

The two are synonymous since Vout = SQRT(2E/Ctot)  I've found that 
coils operating just beyond breakout (ROC relative to Vout) work best.

>I would suspect this is
> where bps becomes significant?

I've found that only if breakout is marginal. Much below that and the 
gap simply burns up instead. 

Malcolm