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Re: Toroid Design Features
From: Chuck Curran[SMTP:ccurran-at-execpc-dot-com]
Sent: Saturday, November 08, 1997 12:09 PM
To: tesla-at-pupman-dot-com
Subject: Toroid Design Features
Hello All:
I'm in the process of deciding on how to prioritize coil improvements for
the next few winter months. Near the top of the list is the toroid. I am
going to get pricing for a spun aluminum toroid and that is where a question
pop's up right away.
Many of us have made a toroid using a similar set of design features.
Specifically, a flat center disk surrounded by the "Donut". The large
radius Donut clearly prevents the premature spark breakout, but results in a
shape that may increase the cost of a spun aluminum item. Here's the real
question. When I draw up a design to take to a local spinning supplier, I
would like to have as much flexibility as possible to control the cost. I
see a toroid that would be, let's say 10" thick with a 5" edge radius as
being just as effective as one with the 10" diameter outer donut coupled to
a thin center disk. I hope the cost would also be lower. The capacitance
should be almost identical too. Have I missed something here, or would the
thick top hat be just as effective? We have many local metal spinning job
shops and any flexibility in the design would sure be a benefit. Thanks in
advance for any comments.
Chuck Curran