Re: Toroid

• To: tesla-at-pupman-dot-com
• Subject: Re: Toroid
• From: "Edward V. Phillips" <ed-at-alumni.caltech.edu>
• Date: Wed, 1 Jan 1997 18:08:45 -0800 (PST)
• Subscriber: ed-at-alumni.caltech.edu Thu Jan 2 22:19:48 1997

"Can anyone tell me where to get a good factory made toroid or how to make a
good one.  I have several but they all are made with 4" flexable dryer hose
and aluminum foil, stove pipe elbows, basket ball with aluminum foil. "
	I've had excellent luck with aluminum dryer ducting, wrapped
first with a lot of masking tape to sort of fill in the "grooves", and
then with aluminum tape from the same source as the dryer ducting.
Biggest on e I've built so far was 16" OD, made with 4" ducting,
and looks and works great.  Took a couple of hours to make the toroid,
somewhat longer to fit plates to it (tempered masonite disks covered
with tape) for mounting on the coil.  At most a Saturday afternoon's
project.
Ed Phillip

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