[TheForge] Hobo Nickels
Grover.Richardson at gtri.gatech.edu
Grover.Richardson at gtri.gatech.edu
Tue Jun 17 14:12:54 EDT 2008
What is done is high Voltage capacitors of high quality are charged up.
Large capacitors. Then they are discharged quickly into a turn of wire
that usually disintegrates due to the power induced. But before it
disintegrates it generates a large magnetic field that causes the coin
to shrink in diameter.
We use the same circuit when we magnetize magnets, just to a smaller
degree.
Danger. Besides the high Voltages, the capacitors used are of such a
quality that a lethal charge can be achieved merely by dry air gently
blowing across the terminals. I've seen it happen. Didn't kill anyone,
but scared the britches off of me. I was double checking one before
picking it up. It had not been properly terminated before shipping.
They are terminated by shorting the terminals with a section of wire.
Surplus Sales of Nebraska has some good quality capacitors. You can
pick up capacitors to store a megajoule of energy relatively cheaply.
If you have a fork lift<G>.
-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of Jerry Frost
Sent: Saturday, June 14, 2008 12:49 PM
To: Blacksmithing List Sponsored by ABANA
Subject: Re: [TheForge] Hobo Nickels
Yesterday I did a quick search and ran across lots of
URLs about coin shrinking and that one came up #1.
Looks like fun but seeing as I'm no less clueless about
electronics than last time I was intrigued I'll
probably stick with the, "Ooh cool!" crowd.
Frosty
-------------------------------
If it ain't forged
it ain't real.
Wrought iron is.
The FrostWorks
Meadow Lakes, AK.
From: "Clyde" <clyde at fibernetcc.com>
>
>>
>>I've seen a site somewhere with instructions on how
>>to
>>do this but I lost my bookmarks a while ago. <sigh>
>
> How about
> http://teslamania.delete.org/frames/shrinkergallery.html
>
>
>
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