Re: Toroid construction (fwd)

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

Original poster: Tesla List Moderator <mod1-at-poodle.pupman-dot-com>



---------- Forwarded message ----------
Date: Thu, 19 Sep 2002 08:13:36 -0700
From: Allanh <allanh-at-starband-dot-net>
To: Tesla list <tesla-at-pupman-dot-com>
Subject: Re: Toroid construction

I always compress the duct untill it fits. If you need a larger top load,
you can remove the pie plate and use a pizza pan by just stretching the
duct.

allan

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, September 17, 2002 3:54 PM
Subject: Toroid construction


>
> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Esondrmn-at-aol-dot-com>
>
> I could use some advise from those of you who have made toroids using
> semi-rigid flexible aluminum ducting.  I have two 9" metal pie pans that I
> plan to use back to back, then wrap the ducting around the outside.  When
I
> made some larger toroids for the big coil using corrugated plastic pipe, I
> wrapped it around an acrylic center form and cut the ends to join smoothly
> then used nylon lacing cord to tie the ends together.  How do you join the
> ends of the aluminum ducting?  Use aluminum tape?  I planned to use
aluminum
> tape to attach the ducting to the pie plates.  I will drill a 1/4" hole in
> the center of the pie plates for mounting on the coil.  Do you also maybe
> rivet the plates together?  Do you stretch the ducting out to its full
length
> then cut the ends to fit?  Or, compress it back together, evenly, until it
is
> just the right length?
>
> Thanks for the help, Ed Sonderman
>
>
>
>