[TCML] toroids instead of spheres - why?

[Electronic Battle <electronicbattle@xxxxxxxxxxxxxx>]

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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