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Re: Capabilities of Small Thin Wire Secondaries (fwd)



---------- Forwarded message ----------
Date: Tue, 28 Jul 1998 22:28:29 -0600
From: Steve Young <youngs-at-konnections-dot-com>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: Capabilities of Small Thin Wire Secondaries (fwd)



----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Capabilities of Small Thin Wire Secondaries (fwd)
> Date: Monday, July 27, 1998 8:56 PM
> 
> John and all,

Very interesting tests and results.  The last statements of your Tests 3
and 4 are interesting.  Do you, or anyone else, have any idea why there
seems to be a correlation between gap heating and secondary racing sparks
even though the gap quenching appears to stay at the 1st notch?  What
parameter is shifting which causes the racing sparks??  

--Steve
> 
> ---------- Forwarded message ----------
> Date: Mon, 27 Jul 1998 17:57:23 EDT
> From: FutureT-at-aol-dot-com
> To: tesla-at-pupman-dot-com
> Subject: Capabilities of Small Thin Wire Secondaries
> [snip]
> Test 3:  Back to .007uF using the new Terry F.- type gap, (used
> 14 gaps).  This gap quenched much much better than the previous
> 4 section gap, and gave 1st notch quenching at all times even with
> tightest coupling at k = .2 (sec lowered all the way).  Sparks are
> still 21" long, but now multiple streamers are formed.  Streamers
> occasionally strike the primary.  A few racing sparks appeared
> after awhile, but a household fan blowing on the gaps helps slightly.
> Eventually the gaps heat and racing sparks appear, although the
> quench on the scope could be seen to remain at 1st notch.
> 
> Test 4:  Installed 4" by 17" toroid on top of small 1.5" by 4.5" toroid.
> Now only one streamer was formed, but a "corona column" formed
> between the primary and the toroid at one point.  I had to raise the
> large toroid using a metal spacer to prevent this.  23" sparks were
> obtained.  Racing sparks form on sec after the gaps heat, but scope
> still showed 1st notch quenching.
[snip]
> John Freau
>