Re: Toroid Design

On Fri, 18 Dec 1998, Tesla List wrote:

> Original Poster: Esondrmn-at-aol-dot-com 
> The two existing toroids are made from 5" diameter corrugated black plastic
> drain pipe bent into a circle around a .25" thick acrylic disk.  It is then
> covered with clear packaging tape then aluminum foil tape.  Does this same
> pipe come in larger diameters like 8" or 10"?  I don't think the local
> building supply places carry anything larger than 5".  I don't want this
> to be too heavy.  The coil can't support too much weight.  When I built
it, I
> thought a 4" x 14" toroid was large.  Pretty funny now.

I have never seen the flex pipe that big, but I did find some flex Al
ducting at Eagle Hardware in 8" diamater.