Re: Slow Wave Helical Resonator Experiment

At 10:29 PM 12/8/98 -0700, you wrote:

>Original Poster: FutureT-at-aol-dot-com 

>I've never seen it posted on the list, but the Corums used a 24 volt
>dc source and and a Ford spark coil buzzer was used as a spark gap.
>An oscilloscope was connected directly across the terminating ball to
>ground and the voltage waveform recorded is the one you refered to that
>shows the 10 times voltage rise.   
>I spoke to Malcolm about this some time ago, and he said he was 
>familiar with this buzzer technique.  Maybe this technique led to false
>results in the Corums tests.

Was the Ford spark coil buzzer used with an air-core Tesla primary &
secondary? I ask because ferromagnetic materials exhibit dispersion
characteristics. This characteristic was used for FM chirp-to-impulse delay
lines for radar pulsers.

>> Subject: Slow Wave Helical Resonator Experiment

>> Original Poster: Terry Fritz <twf-at-verinet-dot-com>

>>...  In that paper, they describe a
>> phenomena where the voltage on the secondary rises by standing waves in
>> secondary after the primary spark goes out.  They describe how the Tesla
>> coil behaves as a "velocity inhibited quarter wave resonator".  In this
>> paper they describe the secondary voltage increasing to very high values
>> after the primary spark has gone out.   Apparently over 10 times what it
>> was during the ring-up period.