RE: [TCML] Sphere Topload Coil

[david baehr <dfb25@xxxxxxxxxxx>]

Hi,   just your basic Ol' coil :  4" dia sec  wound to 24" , #26 wire 
 
                                      Pri.-  .25" copper tube /flat spiral ...1.25" spacing from the sec.,  .25" spacing bettween turns (12 total ),
                                                tapped at the 11th turn
 
                                            homemade poly oil caps (TCBOR )  APPROX  .028mfd (this is a guesstament , I dont have a cap meter 
                                         right now.
 
                                              1" copper pipe gaps , with two good sized muff fans for cooling
 
                                                      Power :  1.5kva "baby pig" , ballested  UP TO 3kva
 
                               Top Load,...four 8" SS Gazing Balls ,  outer most surface of balls set at 27"  (balls are on telescopic brass tubing, and can be spread out further,  this is basically a copy of the topload on the Piranha Coil ,Thanks Terry !  ,(but, im to cramped for room for that to help much
                                    Freq. ?   I haven a clue   :-(
 
   works well and not to many pri strikes .......................> Date: Mon, 18 Feb 2008 17:25:55 -0800> From: bartb@xxxxxxxxxxxxxxxx> To: tesla@xxxxxxxxxx> Subject: Re: [TCML] Sphere Topload Coil> CC: > > 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> > _________________________________________________________________> > Need to know the score, the latest news, or you need your Hotmail®-get your "fix".> > http://www.msnmobilefix.com/Default.aspx_______________________________________________> > Tesla mailing list> > Tesla@xxxxxxxxxxxxxx> > http://www.pupman.com/mailman/listinfo/tesla> >> >> > > > _______________________________________________> Tesla mailing list> Tesla@xxxxxxxxxxxxxx> http://www.pupman.com/mailman/listinfo/tesla
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