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Re: 12kV / 60 ma Neon Sign Transformer

Original poster: "Paul B. Brodie" <pbbrodie@xxxxxxxxxxxxx>

I was following coiling avidly for several years, with the intent of building my own, up until about 2 years ago, I just recently reentered the fray, so to speak. The one thing I would advise you to update yourself on is the advancements made in capacitors. The development of the MMC (multiple mini capacitors) has made the rolled poly and oil caps obsolete. I personally think they are messy, a bear to build, and much more expensive, anyway. Also, for software, I was recommended WinTesla that you can find at
Good luck. I'm glad to see I'm not alone in getting back into coiling. Everyone here has been extremely nice and helpful!
Paul Brodie

----- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Monday, March 07, 2005 7:30 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