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: "Bert Hickman" <bert.hickman-at-aquila-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Sat, 26 Feb 2000 20:29:18 -0700
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

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

Bill,

Your topload is either too small in outer diameter versus your
secondary, or it is elevated too high above your secondary. In either
case, it is not providing sufficient electrostatic shielding to protect
the topmost turns. The simplist cure is to lower your topload from its
present distance to 4" or less. And, because lowering the topload will
reduce its effective topload capacitance, you may find that you need to
increase your primary frequency a bit to keep your system in tune. 

Safe coilin' to you!

-- Bert --

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