Re: [TCML] Inductor design program?

[DC Cox <resonance@xxxxxxxxxxxx>]

You're right.

The easy way is to use a substantial core cross section (I use 4" x 3 5/8")
from an old stripped pole xmfr core, then wind on 110 turns of #8 AWG.  Hook
it up to your pig (each one is slightly different), and set up a small horn
gap (climbing arc) plus an ammeter in the pri circuit with your reactor.

Run it and slowly begin removing 5 turns at a time until you hit around 34
Amps.  With no cap in the circuit you always want to set this current 5-8
amps lower than your operating Tesla oscillator circuit.  It usually comes
out to 85-90 turns for 40 Amps.

This process is the least time consuming and more accurate as doing it by
calculation requires you know the specific data on your reactor core
material, and also the data on your pole xmfr core material.

Dr. Resonance




On Wed, Apr 21, 2010 at 8:13 AM, <jhowson4@xxxxxxxxxxx> wrote:

> Hello
> I am attempting to figure out how to design the Inductor for the ballast I
> am working on. does any one know of a program (free) that will allow to me
> to input the core dimensions, wire gauge, insulation thickness, number of
> turns etc. And tell me things like the inductance, resistance, will it fit
> in the core window, ect.
>
> I have been looking for about an hour now to no avail.
> I am trying to design the Ballast I am working on but cant really find the
> much info about how to do it, any suggestions.
>
> I was planning on winding a coil and tapping it at various points, this
> would allow me to have a wider variety of inductance choices and thus
> current choices. such a plan will probably consists of multiple coils of
> different gauge in series. It does not make sense to wind an entire coil
> with 40amp wire when only 1/4 of it would only ever be carrying 40 amps.
> Right?
>
> Thanks,
> John "Jay" Howson IV
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