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Re: An Interesting Problem
---------- Forwarded message ----------
Date: Tue, 14 Oct 1997 19:37:27 +1200
From: Malcolm Watts <MALCOLM-at-directorate.wnp.ac.nz>
To: tesla-at-pupman-dot-com
Subject: Re: An Interesting Problem
Hi George,
Interesting ideas.....
> From: "George W. Ensley" <erc-at-coastalnet-dot-com>
> To: Tesla List <tesla-at-pupman-dot-com>
> Subject: Re: An Interesting Problem
>
> Malcolm,
>
> One of my coils did this a lot. It used a static gap that were a bit too
> wide, but it made for a little extra spark length. Using a bump to force
> breakout it would run very smoothly 10-15 minutes at a time. Without the
> bump it just wouldn't stay lit. But with a few clicks of the power switch it
> would run in fits and starts.
>
> Without the breakout bump there was a lot of extra power being dissipated in
> the gaps. This made them heat up and get dirty fast. I assumed that there
> were some changes in gap geometry when they got hot.
>
> My guess is that when things were running smoothly the cap voltage was
> higher as a result of system resonance. When things were not running
> smoothly system resonance was disrupted. With the primary dissipating the
> secondary energy my poor neon was probably called on to bring the cap
> voltage back from well below 0 volts and just didn't have time to reach
> firing voltage. That theorie only accounts for 1/2 cycle or so but that was
> enough for the wide gaps to finish the job.
but as you say it only accounts for a cycle or three, not several
second's worth. Anyone else? This is a genuine problem.
Thanks,
Malcolm