RE: coil at school?

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

Original poster: Chris Roberts <quezacotl_14000000000000-at-yahoo-dot-com> 

I have run both of my coils at my high school and at my old middle school 
with no ill effects found. One of my coils is a 250VA mini coil that 
actually uses the 3rd prong ground for the RF ground. The other coil is a 
1080VA coil that has been run in the electronics lab with a few computers 
on either side of the room. (About 20 feet away) The way I grounded it was 
to use the drain pipe coming from the sink they had. If you are running it 
in a science lab or something, there should be at least one sink in there. 
I think that it really depends on what power level you are going to be 
running it at, how well tuned your coil is, etc. A rule of thumb that I 
like to use for nearby electronics is to take a florescent tube and see how 
far it can get away from the coil before it goes out. Then I would give it 
a few more feet out and that's where 'I' would believe it is moderately 
safe for electronics! . Have fun with the demonstrations, it is always fun 
to watch people who haven't seen (heard) a coil to get startled from the 
sound when you first turn it on. =D

Tesla list <tesla-at-pupman-dot-com> wrote:
 > -----Original Message-----
 > From: Tesla list [mailto:tesla-at-pupman-dot-com]
 > Subject: coil at school?
 > After making a new secondary coil on the lathe at school, all the
 > professors want me to bring the coil in for a demonstration. But
 > I remember
 > something about coils causing voltage spikes in the mains wiring. I just
 > unplug everything in the house when I run it at home. The tech
 > building has 300 computers that I dont want to have to pay for!
 > How can I run the coil at school (or other building)? I have a filter in
 > the mains input, would that be good enough? Keep the RF ground
 > far from the building ground?



-Chris