[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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
>
>
>
>
>