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Re: How should we measure coil efficiency, was neon vs. p
From: Malcolm Watts[SMTP:MALCOLM-at-directorate.wnp.ac.nz]
Sent: Sunday, July 27, 1997 3:35 PM
To: tesla-at-pupman-dot-com
Subject: Re: How should we measure coil efficiency, was neon vs. p
HI all,
Some results obtained from the mini-coil experiments suggest
that resonant frequency doesn't actually have a great deal to do with
spark appearance....
> From: FutureT-at-aol-dot-com[SMTP:FutureT-at-aol-dot-com]
> Sent: Saturday, July 26, 1997 4:29 AM
> To: tesla-at-pupman-dot-com
> Subject: Re: How should we measure coil efficiency, was neon vs. potenti
>
> > Where did you find that higher frequency gives shorter sparks? I believe
> > it is the other way around. The higher the frequency the longer the spark.
>
> > Energy = hf h = Planck's constant f = freq.
>
> > From the above equation the energy increases as the frequency increases,
> > other factors being equal. This would mean when the frequency increases the
> > spark length increases.
>
> John C,
>
> The above equation completely ignores radiation losses, and plasma ion
> growth effects. As you said, "other factors being equal", but in a TC other
> factors are not equal. High frequency sparks tend to take on a short
> plasma flame-like appearance.
>
> John Freau
I noticed no substantial difference between the streamers I obtain an
higher powered systems and the coils in questions. Flame-like sparks
were obtained but only at high break rates (e.g. 400 BPS). I wonder
about the applicability of equations describing things at atomic level
to large sparks.
Malcolm