Re: Secondary is throwing small streamers off the top two wraps - help?

• To: tesla-at-pupman-dot-com
• Subject: Re: Secondary is throwing small streamers off the top two wraps - help?
• From: "Barton B. Anderson" <tesla123-at-pacbell-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Sat, 26 Feb 2000 12:31:19 -0700
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

> Original Poster: "William Parn" <parn-at-fgm-dot-com>

Hi Bill,

John is right. The toroid should be moved down until the arcs are gone.
It easy to short turns on a close-wound coil if the arcing continues.
BTW, when a short like this occurs, it burns the shorted turn including
the coating ruining a "pretty" secondary. Easy to fix however. Another
alternative is to add a corona ring about an inch above the secondary
which is basically a skinny little toroid or conductive tubing. hmmm,
here you go, take a look at one of Robert Stephens coils showing a
corona ring. You can see the corona ring just above the top creapage
disk.
 http://www.geocities-dot-com/CapeCanaveral/Hangar/3108/mtc-a1.html

I'm not sure of your coil specs and maybe your system is not a high
powered coil. In that case, it would probably be best to just drop the
toroid you have now closer to the top of the secondary.

Bart

>
> Greetings Again,
>
> Uh oh  the top two windings of my secondary started spraying 4" arcs
> out off it all around.
>
> Do you have any idea why that might be occuring?
>
> John mentioned that my toroid might be to high off of the secondary.
> It is about 8" above it.
>
> Any other thoughts would be very appreciated?
>
> Many Thanks,
> Bill Parn

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