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Re: Toroid



Subject:  Re: Toroid
  Date:   Wed, 21 May 1997 23:58:56 -0400 (EDT)
  From:   richard hull <rhull-at-richmond.infi-dot-net>
    To:   Tesla List <tesla-at-pupman-dot-com>


At 12:27 AM 5/21/97 -0500, you wrote:
>Subject:  Toroid
>  Date:   Tue, 20 May 1997 18:59:50 -0500
>  From:   Mark Brumbaugh <mvb02-at-ix-dot-netcom-dot-com>
>    To:   Tesla List <tesla-at-pupman-dot-com>
>
>
>I am pretty new a Tesla Coiling, but I have a couple of observations I'd
>like to throw out.  From the many articles I have read, it seems that
>for most people, the dominate "top" is a toroid.  But in the
>construction of the top, most instructions say fill the center with a
>conductive plat.  Doesn't this render the toroid shape just a flat plate
>with fat edges (or something like that)?  I was under the impression,
>that the "hole" in the middle was criticle to the function of a toroid
>(as a toroid). Also, I've read about individuals placing toroids on top
>of each other. This would seem to approach more of a barrel type shape
>then a toroid.  In any case both of these ideas, seem to negate the
>toroid shape itself as being particulaly critical.
>
>Just a thought.
>
>
The shape of the toroid is just a field control convenience and the hole
is
absolutely irrelevent to anything electrical.  The plate or "web" just
allows a convenient mounting method.

The plate adds zero isotropic capacitance to the system unless the sumed
cross sections are microscopic or represent less than a total of 50% of
the
diameter.

Richard Hull, TCBOR