Re: 3 phase resonators

• To: tesla-at-pupman-dot-com
• Subject: Re: 3 phase resonators
• From: gbyrd-at-aros-dot-net (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Wed, 19 Apr 2000 17:11:43 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Hi John, Terry, and Malcolm

Terry, I believe you are correct about the space charge affecting the
capacitance, and I believe Malcolm is right about the phase changing the
mutual coupling. Since the electric and magnetic fields of the coils are
linked, a phasing difference is probably changing the effective values.
John and Terry spoke a bit about the ion cloud. I did not notice much of a
frequency change with or without corona discharges. If the frequency is
changed slightly while they are sparking, it just makes the sparks appear
more dominant on one coil or the other, but the frequency is about the
same. A change in phase is what really has an affect with the resonant
frequency. Thanks for you input guys!!

Regards, Duane

At 05:28 PM 4/18/00 -0600, you wrote:
>Original Poster: FutureT-at-aol-dot-com 
>
>In a message dated 4/18/00 11:14:54 AM Pacific Daylight Time, 
>tesla-at-pupman-dot-com writes:
>
>> The first surprise was a change in the resonant frequency
>>  of a system just by the phase change of the driving signals alone (no
>>  physical change in the resonator). As an example, with a particular 3
phase
>>  sytstem set for a rotary phase (3 coils and each 120 electrical degrees
>>  apart), the frequency was 82 kHz. With just a change of phase drive to all
>>  coils getting the same phase, the resonant frequency jumps to 102 kHz. No
>>  physical change in the system. By the way, the resonant frequency of a
>>  single coil (with an equivalent top load), is 91 kHz.
>
>Duane,
>
>I remember seeing your nice phasing project on Richard Hull's videotape.
>
>Is it possible that when the coils were 120 degrees out of phase so that
>all the sparks connected at the middle, that this large ionized sparking
>area behaved like a giant toroid or topload, and lowered the resonant
>frequency due to this extra capacitance of the ion cloud in this mode?
>
>When the coils ran at the same frequency, each coil would "see" only
>its own (smaller) ionized spark cloud.
>
>Cheers,
>John Freau 
>
>
>

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