Re: EM only coil?

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

Original poster: "Black Moon by way of Terry Fritz <twftesla-at-qwest-dot-net>" <black_moons-at-hotmail-dot-com>


iirc, the arcs themselfs produce alot of the emi field by acting like a 
long antenna and incressing the slew rate.
However, you could incress the emi by just attaching a giant peice of metal 
to the top of a tesla, when I did that with my 35mm film capsul tesla it 
would cause my pc 6 feet away to beep non stop and keyboard leds blink on 
and off

>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: EM only coil?
>Date: Thu, 12 Dec 2002 14:02:27 -0700
>
>Original poster: "J Dow by way of Terry Fritz <twftesla-at-qwest-dot-net>" 
><jdowphotography-at-hotmail-dot-com>
>
>
>
>
>
>Hello all
>
>I want to construct a tesla coil that is not about sparks but about EM field.
>Most of us are all about efficiency and longer sparks. I am too.
>
>I'm intrigued with the coils ability to illuminate things at a distance. 
>As I am an artist this is proving immensely interesting. Imagine the 
>possibilities. Lighted objects with no visible power source.
>
>Any way I've personally observed that a coil need not make sparks to put 
>out a large EM field. I was reading that when a coil is out of tune it 
>makes a bigger field and the field from a coil that is in proper tune is 
>hardly detectable. I have observer this in my own coils.
>So lets say I construct a coil for EM purposes only. Obviously the amount 
>of power I use will affect the size of the EM field. But I imagine that 
>the pir/ sec ratio can be wildly out of balance. Any thoughts as to the 
>possible construction?
>
>Read you later
>Josh