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Two strang things my testing has found???
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From: terryf-at-verinet-dot-com [SMTP:terryf-at-verinet-dot-com]
Sent: Friday, March 13, 1998 2:35 PM
To: Tesla List
Subject: Re: Two strang things my testing has found???
Hi Malcolm,
I have looked at waveforms from an antenna and the probes side by
side and you are correct. There are certain sweet spots in the position of
the antenna that give much more accurate readings. Also the grounding of
the scope and the scope itself can be sources of additional noise that need
to be considered. One thing I would like to try is to use the probe to
calibrate an antenna. The antenna has the advantage of somewhat higher
bandwidth (if there is anything significant above Fo to see). Also, if my
plan to measure secondary voltage doesn't work, using the probe to calibrate
an antenna to the secondary waveform my give a solid way to really measure
the output voltage.
You obviously do much experimenting, do you have any papers or
published results that you could share with us telling of your experiments
and results?
Happy coiling,
Terry
At 10:02 AM 3/13/98 -0600, you wrote:
>
>----------
>From: Malcolm Watts [SMTP:MALCOLM-at-directorate.wnp.ac.nz]
>Sent: Thursday, March 12, 1998 3:43 PM
>To: Tesla List
>Subject: Re: Two strang things my testing has found???
>
>HI Terry,
>
>> From: terryf-at-verinet-dot-com [SMTP:terryf-at-verinet-dot-com]
>> Sent: Tuesday, March 10, 1998 10:45 PM
>> To: Tesla List
>> Subject: Re: Two strang things my testing has found???
>>
>> Hi John,
>> I am trying to get a full TC system measured with voltage and
>> current waveforms at every node. This would be a spectacular view of what
>> these coils are doing. One thing that may ruin some people's day is that
>> the waveforms recorded by using an antenna system may be mostly noise. The
>> waves I see are much cleaner and make much more sense than the noisy
>> multiple order waveforms you see with an antenna.
><snip>
>
>I think this is a timely note. Initially I was seeing some waveforms
>that didn't make sense. This is the first time I've tried using the
>storage scope out in the garage. On removing the resonator from the
>test setup it was immediately obvious I had been seeing mostly
>primary waveforms with a bit of resonator thrown in. To get around
>that, I repositioned everything so that the primary/secondary gap
>and wiring to them was as far away as possible and the resonator was
>less than six feet from the probe. The resultant waveforms were high
>in amplitude and clean as a whistle. I have a photographic record of
>system output now.
>
>Malcolm
><snip>
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