Re: A figure of merit

• To: tesla-at-pupman-dot-com
• Subject: Re: A figure of merit
• From: "Marco Denicolai" <Marco.Denicolai-at-tellabs.fi> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Wed, 26 Apr 2000 23:51:22 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Tesla List <tesla-at-pupman-dot-com> on 26.04.2000 20:43:16

To:   tesla-at-pupman-dot-com
cc:    (bcc: Marco Denicolai/MARTIS)
Subject:  A figure of merit



>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!).

I'd rather use L / (N * I), where

L = spark length (mm)
N = # of primary turns
I = primary peak current (A)

>I put up 3.8 mm/V:  ~24" or 610 mm with 160 V on my solid-state primary.

You got a 1-turn primary, haven't you :)

Regards

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