Re: Starting with a secondary first?

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

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

Hi Dan,

It should work just fine. The former material is ideal. It probably has
only about 280 turns on it however.
It should be possible to simple add about 3 inches more on each end. That
would get you a 25 inch winding
(370 turns). The cap size will depend more on what size transformer you
will be using for charging. I would
go no less than a 15kv/60mA NST with say about a 0.01uF cap size. If you
build a Sync gap, you might want to
try an LTR size cap (near the 0.02uF range).

Take care,
Bart

Tesla list wrote:

> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Dan_Gallagher%PULSARNOTES-at-pulsartech-dot-com>
>
> Hi folks,
> I don't care what anyone says you people seem like scientists to me. Well,
> anyway, I feel I'm close to obtaining an NST.
>
> Question: there's this big coil here in my office and I would like to know
> if it can be used as a secondary in a TC.
>
> It looks as if the form (tube) is made of 1/8" G10 type material.
> It is 27" tall (can be shortened), 8.5" wide (air core) and has windings on
> 19" of the total length with 4" of empty space (no windings) at each end.
> It appears to be wound with something like 14awg magnet wire.
> I think it used to be an inductor of some type in the electrical industry.
>
> Can I use this for a secondary and if so could someone tell me what the
> primary specs would have to be?
> And where do you get 1/4" copper tubing?
>
> Thanks
> Dan in Ft. Lauderdale