Re: Cyclone fence for ground

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Ed Phillips <evp@xxxxxxxxxxx>

   Based on practice with high-frequency vertical antennas, a ground 
plane (sheet or screen or chicken wire or whatever) with radius equal 
to the height of the coil should be more than adequate as an RF 
ground.  In the "radio case" even 4 radial wires of the same length 
(longer can't hurt) is almost as effective and would be worth trying 
with a TC since they would be lots more convenient than spreading 
anything over the surface.  A REAL ground for 60 Hz safety is also in 
order but the lead can be much longer.  A ground rod driven into dry 
soil wouldn't do much of course, but I can't see any reason why a 
water pipe or neutral on the AC power supply (assuming suitable 
filtering of the coil power input) wouldn't be equally good.

Ed