Re: Source for Aluminum Spheres (up to 12" threaded)

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Ed Phillips <evp-at-pacbell-dot-net> 

Tesla list wrote:
 >
 > Original poster: "Mccauley, Daniel H" <daniel.h.mccauley-at-lmco-dot-com>
 >
 > If anyone is looking for a good source of Aluminum Spheres for use as
 > toploads or for strike balls, here is
 > a source which is relatively inexpensive.
 >
 > http://www.americanflagstore-dot-com/hardware/goldball.htm
 >
 > I recently was working with Ross Engineering to get a quote on 3" and 4"
 > diameter aluminum spheres, and they quoted
 > the 3" sphere at $310.00 each (qty 10-50) and 4" spheres at $350.00 each
 > (qty 10-50).  Thats absurd, especially
 > considering the same company quotes 20" x 3" toroid i was interested in
 > at $220.00 each.
 >
 > Dan

	Has anyone here ever compared large spheres with toroids for top
loading of high-power TC's?

Ed