Re: primary and secondary distance

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

Original poster: "Gregory Hunter by way of Terry Fritz <twftesla-at-qwest-dot-net>" <ghunter31014-at-yahoo-dot-com>

The space between the primary and secondary should be
just wide enough to preclude sparks passing between
the primary and secondary. My, wasn't that a helpful
answer!

I suppose it is one of those "guess things", but it
can be narrowed down quite a bit based on experience.
On both my 4" x 24" and 6" x 30" coils, I'm using
1.5". 1" separation proved inadequate on my 4" x 24"
coil, and I had to cut out the innermost turn.
Sleeving the innermost primary turn with plastic
tubing, or surrounding the bottom of the secondary
with high quality insulating plastic would allow a
smaller space, but I'd rather let airspace do the
job--just seems simpler.

Regards,

Greg
http://hot-streamer-dot-com/greg

--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <Beans45601-at-aol-dot-com>
> 
> how big should the gap be between the secondary and
> primary coil?or, is it just
> one of those guess things?
> 
> 


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