Re: Toroid fabrication?

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

Original poster: "Robin Copini by way of Terry Fritz <twftesla-at-uswest-dot-net>" <rcopini-at-merlin-dot-net.au>

David,

 Try vehicle exhaust suppliers, particularly those that do heavy vehicle
exhausts, the curved
sections used in these systems come supplied as toroids of varying sizes
depending on pipe diameter.
These 'donuts' can be easily chromed for that 'pro' finish.

Best Regards

 Robin Copini






Tesla list wrote:

> Original poster: "David Knaack by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <dknaack-at-rdtech-dot-com>
>
> I'm attempting to come up with ideas for DIY fabrication of
> a toroid for my current small coil (4x11 inch primary).  I've
> noticed that craft stores carry foam toroids (presumably as
> a base for a wreath of some sort) in sizes up to about 10
> inches in diameter.  The outer-inner radius is a bit small,
> on the order of 2-2.5 inches, but it doesn't look too bad.
>
> Has anyone tried using one of these covered with aluminum
> tape or foil, and can make a recommendation?
>
> What I'm after is an acceptable topload that requires minimal
> fabrication work.  At this time I don't have a functioning
> coil, so I'm having difficulty getting the motivation to
> spend much time fabricating anything superiour. :)
>
> DK.