Re: A Puzzle

• To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
• Subject: Re: A Puzzle
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Fri, 5 Sep 1997 23:51:38 -0500
• Approved: tesla-at-stic-dot-net

From: 	Greg Leyh[SMTP:lod-at-pacbell-dot-net]
Sent: 	Friday, September 05, 1997 1:28 PM
To: 	Tesla List
Subject: 	Re: A Puzzle

Richard Wayne Wall wrote:

 
[snip]
> Incidently, Van deGraf generators
> produce exceedingly low current discharges.  (Actually, TC discharges
> are much like Van deGraf discharges, ie., very low current.)  As we all
> understand, voltage in a tuned quarter wave resonator reaches its
> practical maximum and current approaches zero in the limit at the top
> termination.

Are you referring to 'arrested streamers' or discharges to ground?  
In the case of ground discharges from a Van De Graaf, I have measured
current impulses in excess of 1500A, which caused me no end of trouble
with nearby sensitive instruments.

Regarding the current impulses in the base stem of _arrested_ streamers, 
I believe that Bert's suggestions of 1 to 10A are in the ballpark, 
probably with time structures of <10uS.  With a bit of luck (and a 
Fluke ScopeMeter), perhaps I'll catch a waveform or two.


-GL

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