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Re: coupling



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

Hi Ben,

Is it a flat primary? If so, just add more turns to the inside. Best always
is configuring the primary
and/or secondary for adjustment (up and down). Typically, a through-hole in
the primary form allows
this (a seperate support is used to stand the secondary on).

Take care,
Bart

Tesla list wrote:

> Original poster: "Ben McMillen by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <spoonman534-at-yahoo-dot-com>
>
> I'll third the bad coupling.. ;)
>
> My primary is 12 turns of 1/4" copper tubing, 1/2" between
> turns (3/4" center to center).. nearly 3 1/2 - 4" between
> innermost turn of primary and secondary.. I need to rework
> my design... (or just wind a bigger secondary.. )
>
> Coiling In Pittsburgh
> Ben McMillen
>
> --- Tesla list <tesla-at-pupman-dot-com> wrote:
> > Original poster: "by way of Terry Fritz
> > <twftesla-at-qwest-dot-net>" <Kidd6488-at-aol-dot-com>
> >
> > In a message dated 4/9/02 3:56:06 AM Eastern Daylight
> > Time, tesla-at-pupman-dot-com
> > writes:
> >
> >
> > >
> > > > I think I have poor coupling.
> > > >
> > > > I have 1/4 inch copper tubing primary.  3/4" inside
> > to inside spacing so
> > > > 1" center to center.
> > > > and 2" between innermost turn and primary.
> > > > What do some of yall run?
> >
> >
> >
> > Hello everyone, I think my coupling is bad too,
> >
> > 6" sec.
> > .25" Cu Pipe .25" between turns
> > 2" between the pri & sec coils.
> > My secondary is level with the primary coil, and it can
> > only go up.
> >
> > Is there anything else I can do to increase the coupling?
> > ---------------------------------------
> > Jonathon Reinhart
> > hot-streamer-dot-com/jonathon
> >
> >