Need Al hemispheres (approx 16-20" dia)

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Article #7279

#7279

From: Bill White
Date: Fri, 14 Sep 1990 15:01

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	Hello.  I am finishing up a very large van de graaff generator
(about 4' high, fed with a 10kV charge screen, hoping for up to 1MV if
I'm lucky and running in SF6).  Anyhow, I need the top sphere, which should
be in the range of 16 to 20 inches diameter (although anything bigger is
OK too).  But here's the catch -- ever try to find anyone who still knows
how to spin aluminum???
	So if anyone out there knows where I can get such items (four
hemispheres, 16 to 20 inches diameter, aluminum; thickness not terribly
vital as long as it holds its shape), please respond.  I can not use
salad bowls or other devices which are not true hemispheres.  (Incidentally,
I said four because the other two are for a particle accelerator tube).
	I'd like to keep the cost low here, if possible.


|   Bill White			Internet: bwhite@oucsace.cs.ohiou.edu	|
|	MAIER'S LAW:							|
|		If the facts do not conform to theory,			|
|	 	they must be disposed of.				|

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!tut.cis.ohio-state.edu!att!oucsace!oucsace.cs.ohiou.edu
From: bwhite@oucsace.cs.ohiou.edu (Bill White )
Newsgroups: sci.electronics
Subject: Need Al hemispheres (approx 16-20" dia)
Message-ID: <1931@oucsace.cs.OHIOU.EDU>
Date: 14 Sep 90 15:01:59 GMT
Sender: bwhite@oucsace.cs.OHIOU.EDU
Organization: Ohio U, home of the mighty Hocking River!
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