Re: A figure of merit

• To: tesla-at-pupman-dot-com
• Subject: Re: A figure of merit
• From: "Ruud de Graaf" <rdegraaf-at-daxis.nl> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Thu, 27 Apr 2000 17:17:30 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

> Original Poster: "Kennan C Herrick" <kcha1-at-juno-dot-com> 
> 
> A while back Gary Johnson asked for reports on solid-state spark length;
> and I responded with a proposal for a figure of merit or "quality"
> measure for Tesla coils: spark length to a grounded point per primary
> volt--for all builders, solid state and "spark".  I proposed millimeters
> per volt just to make the number less depressing (25.4 mm are in each and
> every inch!).
> 
> But there's been a silence.  So I repeat it.  How about it, everyone? 
> Any interest?
> 
> I put up 3.8 mm/V:  ~24" or 610 mm with 160 V on my solid-state primary.
> 
> Ken Herrick

Hi Ken,

Would mm/W not more reflect the 'quality' of a coil?

Ruud de Graaf

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