Re: The Sigma-6 Coil

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

Original poster: "Christopher Boden by way of Terry Fritz <twftesla-at-uswest-dot-net>" <chrisboden-at-hotmail-dot-com>

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

Hi Bart!

>
>The size of the coil I'm not real sure about (thinking along the lines of
>Chuck Corrans big coil),


Got a URL on that one? I'm not familier with it.

but for
>transportability, I think it would be a good idea to avoid a semi being
>required to move it (should it be
>that big) by making it modular.

Well, depending on it's total size, that's a great idea. It also solves 
several problems of making the secondary in the first place, and allows for 
greater experimentation. Different modules of varying gauges, and spacings 
can be made for versitility in experimentation.

Divide the secondary into something like 4
>sections which can be stacked for
>the finished coil. I was thinking along the lines that if a pvc or some
>type of plastic form is used, the top
>edge can have a hole drilled to insert a singular socket connector. On the
>bottom of the next coil, a pin for
>the connector can be mounted which when stacked, inserts into the socket.

Great, but if I'm going to make it in modular sections, they would be at 
least 3' in diameter, most likely of wood or UHMW. Maybe even Lexan.
hmmm thoughts?


>Obviously, there should be some
>plastic dowels and holding holes for alignment and to keep it sturdy.

4 pins, each about 2" long should work well. In making the modules short and 
fat (3' X 3' or so) they become more stable.

>Probably a lot of ideas here, but the
>idea is to come up with a modular design.

It's a great idea :) I had it about 6 months ago, only to learn quickly that 
someone had published the idea several years before I was born, lol.

>
>Just a thought (it's what I would do for a big coil - insulation at each
>connection should not be problem -
>the mechanics of stability would be of greatest concern in design),
>

Each connection can be just inside the diameter of the coilform, but between 
the endplates of adjacent modules, recessed. It could be rather simple I 
would think, maybe just a bullet connector.

>Take care,
>Bart A.
>

Thanks Bart :)

Duck

>Tesla list wrote:
>
> > Original poster: "Christopher Boden by way of Terry Fritz
><twftesla-at-uswest-dot-net>" <chrisboden-at-hotmail-dot-com>
> >
> > Ok, it's time to start scrounging :)
> >
> > Now that we have a place, have the 501(c)(3) stuff and the incorporation
> > taken care of, have explosive growth happening, and are almost fully 
>online
> > at Sigma-6, it's time to stat on the first large coil.
> >
> > Here's the rules.
> >
> > Biggest possible coil for a 480VAC 200A 3Ph supply. Must operate
> > indoors/outdoors and be semi-portable.
> >
> > ideas?
> >
> > Duck
> >
> > Christopher A. Boden Geek#1
> > President / C.E.O. / Alpha Geek
> > The Geek Group
> > www.thegeekgroup-dot-org
> > Because the Geek shall inherit the Earth!
> >
> > _________________________________________________________________
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>
>

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