Re: shorted primary turns = bigger sparks strangeness

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Malcolm Watts by way of Terry Fritz <twftesla-at-qwest-dot-net>" <m.j.watts-at-massey.ac.nz>

Hi Ken,
       I don't know if anybody picked this up:

On 9 Sep 2002, at 18:03, Tesla list wrote:

> Original poster: "Crow Leader by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<tesla-at-lists.symmetric-dot-net>
> 
> I've been playing with a very out of proportion coil made out of scraps from
> previous projects and noticed something odd somebod might be able to comment
> on.
> 
> The secondary is 4.5" PVC wound to about 30" of 20 guage wire, and primary
> is tape wound from 1/4" flat copper buss bar about 14" in diameter with a
> inner diameter of about 10" with about 6 turns.
> 
> For fun I put a 6" x 24" toroid on top. The self resonant frequency is about
> 240kHz for everything when tuned.
> 
> In any case, at low power levels to keep sparks under 1 foot, I get better
> performance with one turn in the primary shorted out and the tuning tape set
> elsehwere to meet the approximately 240kHz. If turned normally, the sparks
> are smaller. strange.

Tell me more. Did you short an inner or outer turn?  Also where do I 
go to see the pictures you mention? 

Regards,
Malcolm

> what might cause this?
> 
> Also, since the top load capaciance is so large, I've noticed the waveforms
> takes a few cycles to even ring up to a full voltage. I'll post pictures of
> this as it's amusing as well.
> 
> KEN
> 
> 
> 
>