Re: scopes away - mosfet circuits

• To: tesla-at-pupman-dot-com
• Subject: Re: scopes away - mosfet circuits
• From: Malcolm Watts <MALCOLM-at-directorate.wnp.ac.nz>
• Date: Mon, 23 Sep 1996 09:44:32 +1200

Hi all,
        In my present doom and gloom over primaries, Richards comment
about cubic laws governing spark distance caught my eye:

> I have always maintained that a doubling of input power by the
> most advanced coil expert (beyond 10KW) will only yield >25% more
> >spark.  I further believe that even this ratio drops rapidly
> above 40KW! I had anticipated an inverse square law to power /
> spark length, the extra energy has to make extra voltage and extra
> current. Inverse cube is bad news :-( but there's no arguement with
> experience and a reasonable mechanism - ionised air.

    It seems from my primary musings that part of this might well be
related to primary cap energy size. I've found that gap losses scale
rapidly with Ecp. I wonder, has anyone compared an increase in power
by upping Ecp with an increase in power by upping break rate? Does
a difference exist? It seems that upping break rate if possible might 
be the more desirable option if it can be done.

Malcolm

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