Re: and oddity or a normality?

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

Original poster: "Peter Terren" <pterren-at-iinet-dot-net.au> 


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, December 03, 2003 8:14 AM
Subject: Re: and oddity or a normality?


 > Original poster: Rob Maas <robm-at-nikhef.nl>
 >
 >  >Hi Christopher
 >  >I and many others use a smaller toroid underneath the larger one. With
my 6
 >  >inch coil I have 8 foot sparks from a 32 inch coil and NEVER have any
 >  >primary strikes.  If you look really closely on the enlarged photo on
the
 >  >front page of my site http://members.iinet-dot-net.au/~pterren you will see
only
 >  >the faintest glow from the top of the coil itself.  Contrast this with
the
 >  >same coil without the small toroid
 >  >http://members.iinet-dot-net.au/~pterren/T6_windy_small.JPG and I get MOSTLY
 >  >primary strikes.
 >  >Cheers
 >  >Peter (Tesla Downunder)
 >
 > Hi Peter,
 > The difference in performance between the two configurations
 > (with/without 2nd topload) is indeed striking. Is there a
 > theoretical explanation available?
 > What happens if the smaller bottom topload is removed, and the
 > larger one is kept in its original position (and possibly a
 > small retune of the coil)?
 > regards,   Rob Maas

Hi Rob
I have used a spherical topload both above and below a single toroid and
this markedly accentuates the directionality of the streamers down and up
respectively.  Someday I will do some photos of this effect.
Cheers
Peter (Tesla Downunder)
http://members.iinet-dot-net.au/~pterren