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Date: Sun, 12 Jan 2003 20:57:50 -0500
From: Dan Barlow
User-Agent: Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.1) Gecko/20020826
X-Accept-Language: en-us, en
Subject: Re: Ignition Coil High Voltage Power Supply
Organization: Heller Information Services
> Think I would like a VanderGraff generator to minimise the current
> Easy to build
Where can I get spun aluminum spheres for a reasonable price? :)
Even the foam forms are $30-$50 each in the one place I found them.
Maybe I just need to buy one of those 4 foot weather baloons and
fill it with expanding foam...
How about this one:
All you need is some Plexiglas and aluminum foil, some wood (spools
and frame) and bits of wire. You can scale the disks up for more
power. Can make some serious sparks, and is also DC already.
Lets you do _all_ the ion motor experiments easily. If you decide
to make the Van de Graaff generator later
you can use the Wimshurst as an ion pump to chargh the belt.
I love this quote: "Here is the engineer's prototype of the generator
being demonstrated by Dr. Van de Graaff at the Hotel Statler. It stood
approximately six feet tall and was capable of producing about one
million volts of static electricity."
Downside of either method: high humidity shorts them out very
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