Re: [TCML] Tesla's spinning egg of Columbus

[William Beaty <billb@xxxxxxxxxx>]

On Sun, 16 Nov 2008, Ed Phillips wrote:

> No particular reason to use a toroidal core except that they
> look kinda neat - rectangular or square core would work equally well.

Unless you're trying for historical accuracy:

  http://www.foundationfortesla.com/columbia17.jpg

A laminated core of iron wire is probably easier to wind with roughly
circular cross-section (use hose clamps?)


Here's the Columbi Egg from Beograd Tesla Museum's portable show:

  Bill B.   Electrospray demo,  Tesla conf. & exhibit, Vancouver 2006
  http://www.youtube.com/watch?v=NX3dVpK23xo

The museum people did repeatedly complain that the lower 208VAC gave poor
response compared to whatever they'd used back home.



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William J. Beaty                            SCIENCE HOBBYIST website
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