RE: Toploads that bite

To: tesla-at-pupman-dot-com
Subject: RE: Toploads that bite
From: Ted Rosenberg <TRosen1-at-Tandy-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
Date: Mon, 07 Feb 2000 11:55:54 -0700
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

OK. If we accept that capacitance in the toroid, and the potential to have a
...potential, then how do you assure that the charge is clearly drained once
you shutdown and before you adjust height or whatever?

Ted

Subject: Re: Toploads that bite

Original Poster: Adam <adamsmith-at-mediaone-dot-net> 

on 2/6/2000 2:16 PM, Tesla List at tesla-at-pupman-dot-com wrote:

> Original Poster: Ross Ogden <rossoggy-at-yahoo-dot-com>
> 
> I was unfortuanate to get a static electricity shock
> form the topload of my coil yesterday which felt like
> the time when i discharded a crt to my hand. I got it
> when i was removing it after a short run with the
> mains off. Ive heard this happens to other people too.
> It seems strange that about 15 Kv could build up on a
> topload which has a electrical resistance of 32 ohms
> to ground mesured(which proves there is no gap between
> secondy terminal and topload).
> 
> Could my shock of been because the charge built up on
> me insted of the coil load. I was wearing rubber soled
> shoes. 

The secondary coil has capacitance, and often holds a charge after a run.
Many of us have been rudely surprised by this, and I've heard a few people
have dropped their secondaries.  :-)

-Adam
adamsmith-at-mediaone-dot-net