Re: Spark Gap Gasses Experiment

• To: tesla-at-pupman-dot-com
• Subject: Re: Spark Gap Gasses Experiment
• From: Mark E Finnis <mefinnis-at-medicine.adelaide.edu.au> (by way of Terry Fritz <terryf-at-verinet-dot-com>)
• Date: Tue, 01 Sep 1998 23:34:06 -0600
• Approved: terryf-at-verinet-dot-com

At 20:50 1/09/98 -0600, you wrote:

>	The quenched gaps used in the old "wireless" days used 
>copper electrodes, typically round, and spaced of the order 
>of 0.010" apart.  There was a recess in each ring around the 
>"working" electrode, and outside that was a fiber gasket 
>which sealed the inside of each individual gap (pair of 
>electrodes) so as to be air tight.  As mentioned, the oxygen 
>was gone almost instantly, leaving an atmosphere which was 
>mostly nitrogen with a bit of argon.  After many hours of 
>operation the gap surface would be clean and pink, although 
>VERY slightly pitted.  I have such an old gap here, which 
>works great on a small coil and is NOISELESS(!)	in 
>operation.  I have taken it apart and find the electrodes 
>are indeed clean and pink after an hour or so of running.

Ther general principle sounds fine, just not sure how we get the heat away.
 I presume there is still heat, despite no sound ;-)

Mark


_________________________________________________
Mark Finnis
Staff Specialist, Intensive Care Unit
Royal Adelaide Hospital
<http://www.health.adelaide.edu.au/icu>
Ph:  +61 8 82224000   Mbl:  041 2324268
_________________________________________________

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