RE: Coil Usage/Urban indoors

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Vanderputten, Gary by way of Terry Fritz <twftesla-at-qwest-dot-net>" <gvp-at-pvaintl-dot-com>

I have been running my 15",  700w coil in the basement theatre of a
building. Some observations:
1) I employed an RF ground to a storm drain with some chicken wire on one
wall (neighbor protection). I followed the advice of the experts of this
list regarding  grounding and NST protection - the advice is sound. The coil
runs cool and predictably.
2) All HV transformers used in the devices have EMI filters
3) The coil does interfere with the lower end of the am scale and, to some
degree, fm reception, within 30 feet, perhaps longer; don't know.
4) It did not effect a digital camera or palm pilot, even at full power, and
within two feet
5) It did freeze the computerized dimmer control board which was moved back
from 15 feet to thirty feet. It worked fine at that distance, but I still
added incoming rf protection with another EMI device, as well as some rf
grounded chicken wire between it and the coil.
6) Most of the arcing is 12" to several RF grounding sources which reduces
the RF noise considerably; true free streaming has not been fully explored
at full power.
7) People with electronic medical devices are warned, none, to my knowledge
have visited, thus far.
8) Within 4 feet of the ground there is a wiring grid (3/4" emt x 2' grid)
of metal conduit in the ceiling for all the theatrical lighting, hence why I
arc to ground (the desired effect of this project) several feet before the
grid - the conduits have an uncertain behavior and can act as giant RF
antenna for the mains ground. No manifestations of RF.

Stay tuned, and good luck,


Gary

 -----Original Message-----
From: 	Tesla list [mailto:tesla-at-pupman-dot-com] 
Sent:	Tuesday, September 04, 2001 10:14 AM
To:	tesla-at-pupman-dot-com
Subject:	Re: Coil Usage

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Pyrotrons-at-aol-dot-com>

Hi Logan.

Run your small coil anywhere you want, given that there is nothing
electronic 
within 10 feet or so. Make sure your stuff is well designed (no capacitors
to 
explode, gap's to burn, RSG's to fly apart, secondary coil/top to fall over,

energized saltwater to spill, etc.!!!)

Watch the wiring inside the walls, it will kill modems connected to
telephone 
wires.

Make sure it can't arc to anything flammable.

Watch the ozone level. This will limit............or should limit, your 
runtime.

And a massive amount of other precaution, you be the judge. Use common sense

and you'll be fine.

No you do no need any insulation on your ground, as long as it is a GOOD 
ground (few feet of copper in earth or better...) Bare wire connection from 
coil to earth is fine.

Have fun,

Justin Hays
KC5PNP
G-2 #1150
Email: pyrotrons-at-aol-dot-com
Website: www.hvguy-dot-com