Re: Aluminum foil toroids (fwd)

---------- Forwarded message ----------
Date: Tue, 07 Jul 1998 06:52:35 -0500
From: "Barton B. Anderson" <mopar-at-uswest-dot-net>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: Aluminum foil toroids (fwd)

I just bought (last Thursday) two 8 inch diameter sections of alluminum flex
tubing. The two formed a nice 40 inch toroid. It took about 20 minutes to
complete (joined with alluminum tape). I bought these sections at "Knox". Knox
has lumber and hardware stores. I'm in MN, but I've got to beleive that there
are other hardware stores in your area which must have the same tubing,

Tesla List wrote:

> ---------- Forwarded message ----------
> Date: Mon, 6 Jul 1998 20:04:50 EDT
> From: Dsurfr-at-aol-dot-com
> To: tesla-at-pupman-dot-com
> Subject: Aluminum foil toroids
> Help from anybody out there!!
> I have checked an even dozen hardware/builder's supply stores in the area &
> can't find any dryer duct that is all aluminum foil & wire. All they seem to
> offer is solid aluminum (perforated), foil w/ a nylon mesh imbedded in it
> (both good choices for dryer duct) or plastic (which I thought was illegal).
> My olnly other thought was to go to the black corrugated drain pipe or a
> plastic "slinky" wrapped in plastic strapping tape & then wrapped in Al foil
> tape. My one experience w/ this type of toroid ( a small child's toy ring
> wrapped in foil tape) seemed to give off a lot of corona loss from the
> "overlaps" of the tape. Does anyone have any tips as to the correct wrapping
> procedure or any "brand names" of foil ducting on the market?  Thanks, Jim