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Strange Spark Phenomena
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From: richard hull [SMTP:rhull-at-richmond.infi-dot-net]
Sent: Saturday, January 31, 1998 6:22 PM
To: Tesla List
Subject: Re: Strange Spark Phenomena
At 04:52 PM 1/30/98 -0600, you wrote:
>
>----------
>From: FutureT-at-aol-dot-com [SMTP:FutureT-at-aol-dot-com]
>Sent: Friday, January 30, 1998 10:32 AM
>To: tesla-at-pupman-dot-com
>Subject: Re: Strange Spark Phenomena
>
>In a message dated 98-01-30 00:57:02 EST, you write:
>
><< snip
> > The output spark is strange. I have seen this phenomena before but haven't
> > thought much about it until now. The first 2" of the output spark is very
> > thin, the next 2" are very hot, thick and blue, the last 2" are very thin
> > like the first 2". How can a spark that is all one continuous spark be
> > made up of 3 sections? How can the center 2" of the spark be hotter and
> > thicker than the ends of the same spark?
> >
> > Gary Weaver
> >>
>
>Gary,
>
>I see these kinds of effects often with tube coils and the effects
>vary with tuning, coupling, power input, etc. In one case, the
>sparks were 21" long and the first 10" were thick and fuzzy, and
>the upper part of the sparks were thin and pointy and straight. By
>varying the tuning, the sparks could be made completely fuzzy, or
>completely pointy. It's all very weird and I don't know if spark gap
>coil spark appearances are controlled by the same factors as tube
>coil sparks. This whole question of spark appearances is an
>interesting, and as far as I know, an under-explored area of coiling.
>
>John Freau
>
>
John you are absolutely correct. These effects have long been noted and
pondered over here. These are definitly not beats in the coil's frequency
as many might first ponder out. We have though of several possibilities,
but haven't proved or chased the issue down. Too busy chasin' other rainbows.
One that I like is some sort of beating associated with the gap firing
energy point on the AC sine. (Varying in spark systems) Another thought I
like might have to do with the number of beats in the decaying wave train
(coupling and gap related).
Richard Hull, TCBOR