Re: [TCML] Wardenclyffe property up for sale

[Chris Rutherford <chrismrutherford@xxxxxxxxxxxxxx>]

I vaguely recall that Tesla magnifying transmitter made use of a huge
earthing system and had the ability to transfer huge ground currents.
Would this have behaved similarly to any other Tesla coil or would its
scale and height caused secondary effects such as resonance with
'earths natural frequency'?

Chris



On Tue, May 12, 2009 at 12:09 PM, Dex Dexter <dexterlabs@xxxxxxxxxxx> wrote:
> This is nothing else than the "big electrode constructed from the smaller parts".You know,it was quite hard to build smooth electrode of that (Long Island station) size from one piece and to elevate it. And I think the corona breakout behaviour of the electrode with hemispherical attachments wouldn't be much diferent from the "chicken wire" toroids some coilers use today :
> http://tesladownunder.com/Tesla18DoubleToroid_small.jpg
> Once the corona streamers break out, the average breakdown field (the streamer zone average) drops down to 500-600 kV/m.For electrode elavated 50 m above ground level, streamer appearance means  breakdown potential of about 25-30 MV.Besides,corona presence means additional loss of energy which Tesla surely didn't want to have.
>
> Dex
> --- g.peterson@xxxxxxxxxxxx wrote:
>
> From: "Gary Peterson" <g.peterson@xxxxxxxxxxxx>
> To: "'Tesla Coil Mailing List'" <tesla@xxxxxxxxxx>
> Cc:
> Subject: RE: [TCML] Wardenclyffe property up for sale
> Date: Sun, 10 May 2009 08:39:39 -0600
>
> Dex wrote:
>>> Sad story about the largest Tesla [magnifier] in history.
>>> In his authorized biography "My Inventions" Tesla mentioned the
>>> [magnifier] could be operated up to 100 MV.  I'm afraid voltage like
>>> that wouldn't be feasible.  Numerous measurements and experiments show
>>> the normal atmosphere breakdown field is aprox. 900 kV/ft.  Applying
>>> this to a perfect 69 feet diameter sphere gives about 31 MV of
>>> breakdown potential.  Clearly, Tesla overestimated the figure. . . .
>
> The maximum potential before spark breakout from a Tesla coil's top-load can be increased by holding back the streamers.  This is what Tesla was doing with those hemispherical attachments on the magnifier shown in U.S. patent No. 1,119,732, Dec. 1, 1914.
>
>     http://www.teslaradio.com/images/1119732-1.gif
>
> Gary Peterson, Chief Operating Officer
> Tesla Wardenclyffe Project, Inc.
> P.O. Box 8041
> Breckenridge, CO 80424
> Phone: (970) 453-9293
> www.teslascience.org
> www.ntmsc.org
>
>
>
>
>
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