Re: How do you get the guts (or stupidity) to draw a spark ?
Subject: Re: How do you get the guts (or stupidity) to draw a spark ?
Date: Sun, 08 Jun 1997 19:52:56 +1000
From: Peter Electric <elekessy-at-macquarie.matra-dot-com.au>
To: Tesla List <tesla-at-pupman-dot-com>
Tesla List wrote:
> Subject: How do you get the guts (or stupidity) to draw a spark ?
> Date: Sat, 07 Jun 1997 09:35:33 -0500
> From: Shawn Collins <rubidium-at-worldnet.att-dot-net>
> To: tesla-at-pupman-dot-com
> I have seen many pictures on various pages of people drawing sparks to
> objects they are holding on to. At what frequency of operation is this
> and how did you ever get up the guts to try it ? I know the primary
> can kill, but according to skin effect formula (which I can't find right
> now) at 170kHz the current is only .06" deep.
I have a fairly small coil driven from a 15KV 60Ma Neon Xformer that
throws around 30" sparks. I have tried hanging on to the end of a Flouro
tube and drawing a few sparks with that but even though my coil runs at
over 300Khz, it was fairly unconfortable, i.e. I got a pretty strong
tingle down my arm.
I am also intigued by how these guys draw off huge arcs using larger
coils that run a lower freqs. Maybe they use hidden earth wires.
Cheers from downunder,