Re: [TCML] Primary

["DC Cox" <resonance@xxxxxxxxxxxx>]

If you run your data thru JAVATC it will display your exact coeff. of
coupling.  No longer any need to guess.

Ideally, for a classic type Tesla transformer, you want 0.10 to 0.14 for a k
value.   This will give you good energy transfer without flashover or racing
sparks.

Since it is already wound, it will run fine with a 2.5" spacing.  Also
experiment with sec elevation above pri and toroid elevation above last turn
to peak your output to max.

JAVATC will provide accurate answers to your questions.

Dr. Resonance




On Wed, Aug 27, 2008 at 3:00 PM, stanley miller <swm334@xxxxxxxxx> wrote:

> Hi again guys,
>
> I got my primary done today, and to my dismay half way thru realized the
> spacing between primary and secondary was not going to be as I had
> calculated which was to be 2" inches.  My problem is I started the first
> turn right at 2" and built out from there so as it comes around I end up
> with about a 2 1/2" inch gap between the primary and secondary.  I have read
> that the gap should be between 1 to 2" inches so this might be pushing it
> with a 15/30 nst.  Regardless I finished winding it and it came out pretty
> good.  I did wind it with more turns then necessary as I want to be able to
> use it in the future on a bigger ma rated nst.  The secondary is already
> done it is 4" inch dia by 22'' with 24 awg.
> So my question is will I lose good coupling with this large of a gap?  If
> so at this point the easiest thing to change would be to make another
> secondary with a bigger dia.  Any ideas?  Thanks!
>
> Stan
>
>
>
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