Re: JHCTES Ver 2.3 Program (was More Coupling...)

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

Original poster: "Barton B. Anderson by way of Terry Fritz <twftesla-at-uswest-dot-net>" <tesla123-at-pacbell-dot-net>

Hi John,

I saw your other JHCTES results in the other post. I'm impressed with
coupling and mutual inductance. I've
mentioned quite a long time ago that I couldn't get your program to run on
my pc, but I now have a second pc
that doesn't have the quirks this really old "Nexgen" processor has. I'll
finally be able to take a first look
at it. Can't wait!

Take care,
Bart

Tesla list wrote:

> Original poster: "John H. Couture by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <couturejh-at-worldnet.att-dot-net>
>
> Bart, All -
>
> You can find the coupling factor, mutual inductance, and many other TC
> parameters with the JHCTES Ver 2.3 computer program. It is the only program
> prensently available that calculates these parameters and coordinates them
> with 46 TC input and output parameters. By coordinating the parameters the
> TC design is always in tune and eliminates possible coiler errors. The
> program has stood the trial of time.
>
> John Couture
>
> -------------------------------
>
> -----Original Message-----
> From: Tesla list [mailto:tesla-at-pupman-dot-com]
> Sent: Tuesday, December 12, 2000 7:27 PM
> To: tesla-at-pupman-dot-com
> Subject: Re: More Coupling...
>
> Original poster: "Barton B. Anderson by way of Terry Fritz
> <twftesla-at-uswest-dot-net>" <tesla123-at-pacbell-dot-net>
>
> Hi Ed,
>
> Measured K on my flat primary for my 12.75" x 45" coil.
> The flat primary is 16.5"ID, 0.375"wire, 0.625" spacing (c-c) (or 0.375
> edge to edge), and 11.6
> turns in the case of using my 0.06uF cap setup.
>
> I used a method of measuring I believe Terry posted a couple years ago.
>
> Measured current of primary using a hair dryer in series (10.95A). Then
> measured secondary
> voltage (secondary + 1uF cap + 18k ohm in series) at 2.59V.
>
> Mutual Inductance M = V / (377 * I) or 2.59V / (377 * 10.95A) = 627.4 M
>
> K = M / sqrt(Lp * Ls) = 627 / (107.13uH * 87.6mH) = 0.205 K
>
> Anyway, that's K on that day. I am only aware of one program that calc'd K
> but it was
> preliminary and I haven't heard anything about it in a "long" time.
> Measuring is pretty easy and
> can be done with a simple DMM.
>
> Bart
>
> Tesla list wrote:
>
> > Original poster: "Ed Phillips by way of Terry Fritz
> <twftesla-at-uswest-dot-net>" <evp-at-pacbell-dot-net>
> >
> > A friend of mine built such a high k system at TRW, in connection with
> > a million-volt (really 10^6 volts) pulse project.  It worked OK but was
> > a lot of work to get set up right.  Do you know of any approximate
> > method for calculating the mutual inductance for a flat primary?  I
> > suppose one could do it by computing M for each of the turns and then
> > summing it, but that sounds like a lot of work and have never tried it.
> >
> >         I see a lot of fellows using flat primaries, and wonder how much
> > coupling they actually get.
> >
> > Ed