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Re: Tesla history project

Original poster: Ed Phillips <evp@xxxxxxxxxxx>

"Hi Dave,

In his patents, he shows a Wardencliff type tower with a large toroid
instead of a mushroom.

David E Weiss"

	I suspect that general shape is a more efficient use of material than a
toroid, but the reason for the "bumps" has never been clear to me since
they must result in some increase in local field and hence lowering of
breakdown voltage.  Has anyone ever seen an explanation?  They look
sorta cool but............