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Re: 12kV / 60 ma Neon Sign Transformer

Original poster: "Dr. Resonance" <resonance@xxxxxxxxxx>

Use a 1,400 turn sec.   Height/dia ratio of 4.5:1.  This height is equal to
winding length. Divide by 1,400 to get the correct wire dia and this
determines what guage to use.

The 1,400 turn coils with a good toroid always work great with a 12/60 NST.

Dr. Resonance

----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx> To: <tesla@xxxxxxxxxx> Sent: Monday, March 07, 2005 5:30 PM Subject: 12kV / 60 ma Neon Sign Transformer

> Original poster: Davetracer@xxxxxxx > > Hello all, > > I have not built a Tesla Coil in quite some time. However, if both of > my brain cells that are left remember correctly, one starts at the power > supply. I could be wrong. I've been wrong before, plenty of times! > > I do have a 12kV / 60 ma neon sign transformer and I had good luck > with copper tubing as a primary "last time". > > Now, what I need to determine (I believe) is the capacitance C to > store up current each 1/60th, the primary's L to determine resonant > frequency, and the secondary's L to make sure it's a 1/4 wave electrically > from the primary's L frequency. > > Does anyone happen to have software to do this? I have seen references > to some programs but am not finding them. > > Alternately, would someone be willing to give me the numbers to design > the coil with (e.g., "You're going to want 800 turns on the secondary, Dave")? > > As I recall finding capacitors was always a joy :-( but I'll give it a > try. If nothing else, I can use aluminum foil in 14 x 14 and plate glass in > 18 x 18. > > Again, any pointers to software, or existing designs, would be quite > nice. I too started with the 1964 "Two Tesla Designs" magazine articles. > > Thanks again, > > Dave Small > > > > >