Seeking Advanced Spark Gap Information
From: Malcolm Watts [SMTP:MALCOLM-at-directorate.wnp.ac.nz]
Sent: Sunday, April 05, 1998 6:50 PM
To: Tesla List
Subject: Re: Seeking Advanced Spark Gap Information
I have a copy of Sargent and Dollinger's High Power
Electronics which gives a pretty good picture of gap breakdown
characteristics. Anything in particular you'd like me to look up?
I know from scoping that some amazing transients are generated by
> From: terryf-at-verinet-dot-com [SMTP:terryf-at-verinet-dot-com]
> Sent: Saturday, April 04, 1998 11:19 PM
> To: Tesla List
> Subject: Seeking Advanced Spark Gap Information
> Hi all,
> I have been examining the voltage and current waveforms across a
> spark gap with an advanced 30MHz bandwidth fiber-optic probe system. What I
> see is amazing!! Honestly, I don't believe it. I will elaborate more when
> I know this is real.
> I am seeking any information from any one who may have connected a
> spectrum analyzer to an antenna near a coil or who has any knowledge of very
> powerful high frequency signals being generated by Tesla coils. These
> signals would be at a fairly constant frequency in the 10-100MHz range and
> would be pulsed in sync with the gap firing. They would probably be more
> powerful than the fundamental frequency signals and may appear as a set if
> Fourier spikes on an analyzer.
> Also, anyone who has advanced knowledge of how the spark in the gap
> is generated and maintained during the firing cycle please let me know and
> I'll bounce this off you to see what you think.
> I may be seeing something that is not real and I am looking for
> independent information that would confirm what I see. If it is real, this
> whole spark gap business just got much more complex!
> Thanks and I'll explain more when I know I haven't goofed. :-)