cheap toroid-form source

• To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
• Subject: cheap toroid-form source
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Fri, 5 Sep 1997 08:44:22 -0500
• Approved: tesla-at-stic-dot-net

From: 	Dan Kline[SMTP:ntesla-at-ntesla.csd.sc.edu]
Reply To: 	ntesla-at-ntesla.csd.sc.edu
Sent: 	Friday, September 05, 1997 8:02 AM
To: 	tesla-at-pupman-dot-com
Subject: 	cheap toroid-form source

Hi all,
A cheap but good toroid form for small coils is a cat-toy found at your
local pet-warehouse. The form is a plastic toroid with cutouts along the
outside through which a cat can reach and bat a ball around the inside of
the hollow doughnut. I have seen these in several sizes, and the only
modification necessary was cutting off the lip around the outside where the
two toroid-halves joined together. By adding a center-disc and covering
with aluminum tape, I had a very serviceable toroid in less than 30 minutes.
I had a friend tell me that a catalog of pet-toys had these things in 5
different sizes, though I have only seen (and purchased) two.
For what it's worth :)
Dan

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