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RE: [TCML] toroids instead of spheres - why?



Sphere gives more, but little field control.

See TCBA Newsletters for 1997 Vol 16 #1 Page 15.  (TeslaUniverse has them.)

John Couture has an article there with a graph showing differant sphere
sizes and the equivilant toroid sizes for differing capacitance values, so
you can work out the size for a specific capacitance value 5pF to 90pF.
(toroids catererd for are 10 to 80 inch major diameter, and 20, 12, 6, 3
inch minor)


Phil
www.hvtesla.com

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of Electronic Battle
Sent: Wednesday, August 21, 2013 10:34 PM
To: tesla@xxxxxxxxxx
Subject: [TCML] toroids instead of spheres - why?

Hello all

many years ago someone provided a very useful reference which was a 
document (either a paper or an excerpt from a book). I look to Antonio 
De Queiroz or Bert Hickman for starters but it may have been one of many 
similar experts.

If I remember correctly, it explained that for a given breakdown 
voltage, the dimensions required of a toroid to hold off that voltage 
meant it presented a smaller capacitive load than a sphere of equivalent 
hold-off (breakdown) voltage.

I can't find the reference and I have failed to locate it in the 
archives, can anyone point me in the right direction please?




Thanks!





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