RE: RF grounding (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Wed, 20 Jun 2007 02:46:00 +0000
From: Jeff Behary <jeff_behary@xxxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: RE: RF grounding (fwd)

Here in South Florida the only good grounds are the Atlantic Ocean and Gulf 
of Mexico, and believe me the authorities get pissed when you ground Tesla 
Coils to them!

For small coils, and this probably isn't the best logic, I made a large 
"sort-of-rolled cap" with only one metal conductor and some plastic 
dielectric.  The result is just a large surface area of metal insulated from 
itself, like a large "capacity" but not a "capacitor".  I use it for indoor 
demos where grounding of small units isn't always convenient.  I'm sure its 
not the best thing to do, but it seems to be better than nothing in a pinch. 
  I've also tried this arrangement for smaller bipolar cylinder coils 
(separately wound) under oil, where I didn't want to drill any holes in the 
bottom of a container to run a ground wire (and probably eventually oil on 
the floor)...

Its probably the equivalent of using the VW bus in the last example but 
forgetting to bury it...?

Jeff Behary, c/o
The Turn Of The Century Electrotherapy Museum
http://www.electrotherapymuseum.com

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