Re: [TCML] Primary Capacitance Calculations - "Black Boxes"

[DC Cox <resonance@xxxxxxxxxxxx>]

Paul Nicholson, a PhD in math, in England, helped Bart with the necessary
equations.  Many a derivation of Gauss's Law and other integrations.  If you
really need to know Bart can provide the details.  He has posted it years
ago on this list, perhaps it's still in the archives.

You can certainly waste time doing all this math, or just use the program
and let the computer do it for you.  It works with less than 1/2 turn
adjustment on the pri --- every time it's used.

I can say, from using it on over 70 coil designs, both classic RSG and
DRSSTC, it works perfectly and gives you all the information you need.

A Gaussian distribution is a "tool" used in physics.

Dr. Resonance





On Mon, Apr 12, 2010 at 1:06 PM, Thomas Schmit <Thomas.Schmit@xxxxxxx>wrote:

> No ... it is a black box because I don't know the algorithm it uses, nor do
> I know how this algorithm was derived. All I know is that I plug in values
> and it spits out values - this is what we call a "black box". I'm not saying
> they are necessarily wrong, I just don't know how they work.
>
> Please elaborate on "good physics". A Gaussian distribution is merely a
> statistical argument and is not "good physics". Good physics starts with
> first principles.
>
> Tom
>
> p.s. Thanks everyone for the advice. Still "mulling" things over in my
> head...
>
> ________________________________
>
> From: tesla-bounces@xxxxxxxxxx on behalf of DC Cox
> Sent: Mon 4/12/2010 8:12 PM
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] Primary Capacitance Calculations
>
>
>
> Use JAVATC.  It's not black box, but based on solid equations based on good
> physics (Gaussian distributions, etc.)
>
> Enter the data required in the transformer section and it will provide your
> exact xmfr impedances.  It will also give you a good cap value and pri
> turns
> value.
>
> With this size xmfr either a .06 uF 80 kV or 0.1 uF 80 kV cap will work
> very
> well.  For most medium size coils driven by pole xmfr, with spark output in
> the 6-8 ft range, I would go with the .06 uF size cap.  For coils running
> 10-15 kVA, with spark output in the 10-15 ft range, the 0.1 uF size will
> work best.
>
> Be sure to use a large coil dia, in the 16" to 20" range for optimum
> performance from a pole xmfr powered coil.
>
> Dr. Resonance
>
>
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>
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