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Re: [TCML] Sphere Topload Coil



Hi David,,

Sounds great. How about posting the basic specs including frequency (if you have it). I understand being cramped for space. I think most of us are in the same situation. I would expect the 7 x 24 toroid to be similar. Breakout and capacitance isn't that far off. The 12" might be something to shoot for, but if you ever do get a radius of curvature that is just too shallow for breakout, you'll be quite surprised when it doesn't. This happened to me and made me very aware of the physics taking place at the terminal. Point charges on the sphere is going to be very uniform if smooth and to some degree even when not smooth. If the ROC is large enough, breakout won't occur. It's a weird feeling when that happens. First thing I did was to start adding breakout points, and I expect others did similar in that situation. But it's better to know what will breakout and what won't for a given coil setup. That is eventually my direction.

Take care,
Bart

david baehr wrote:
........ I use four  8"  spheres on my  LiL'  4" dia coil  (static  spark gap ), and works quite well , but , I was hoping to hold off breakout of the spark  a bit more ,.... maybe  four 12"' s  , ??     Before I tried the 'balls',  i was using a 7" x 24" dryer duct toroid ,.....performance is similer , ...but im crampt for space here in da basement  ( i could send ya pics if ya want )
Date: Mon, 18 Feb 2008 16:19:38 -0800> From: bartb@xxxxxxxxxxxxxxxx> To: tesla@xxxxxxxxxx> Subject: Re: [TCML] Sphere Topload Coil>
CC: . But due to the coil I'm looking at (a huge sphere), my > concerns are valid and I'm contemplating a multi-sphere configuration > versus a single sphere (something similar to Terry's Piranha Coil).> > Take care,> Bart
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