Re: Newbie JAVATC question

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Bart Anderson <classi6-at-classictesla-dot-com> 

Hi Jack,

Yes, but it would be prudent to look at your power source first. You may 
want to simply go down to the Transformer Design section of Javatc and 
enter your proposed specs as follows:

This would be the specs for a 12000V, 30mA NST in the US,
Example inputs: Vin=120, Vout=12000, Iout(mA)=30, Hz=60, Applied Vin=120, 
Ballast=0:

Then calculate it and you'll be given a Resonant, Static Gap LTR, and RSG 
LTR cap sizes for the transformer. I suggest staying away from the Resonant 
size and use the appropriate LTR size. You then have a proper sized cap for 
the power source. From theret, you can set the Primary Winding inputs and 
Secondary Inputs.

I usually set the Secondary Inputs and Primary Inputs with a cap size and 
do a simple Run Javatc to to make sure the primary spacing is calc'd as I 
intended and those type of issues items. Once I'm satisfied that the coil 
is represented as I intended (making sure I didn't goof on an input), I'll 
check the Auto-tune and do another Run Javatc to let the program adjust the 
turns from resonance. ALWAYS MAKE SURE you have a groundplane radius value 
in the ground plane radius input. For example, let say you'll run the coil 
in a garage. Simply set the distance from the center of the coil to the wall.

Any other questions as your going through it, just ask. If you need 
off-line help with the program, just send an email to the address shown above.

Take care,
Bart


Tesla list wrote:

>Original poster: Phlunktfysics101-at-aol-dot-com
>I'm trying to figure the correct dimensions of my coil on JAVATC.  In the 
>"PRIMARY" parameters section it asks for Primary Capacitor (uF).
>Does anybody know a formula to calculate this?  I'm using 50' of 0.25" 
>copper tubing coiled in flat spiral form with 1/2" spacing between turns, 
>approx 11 turns.
>
>Thanks!
>Jack
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