Re: Coiling Waveforms.

To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
Subject: Re: Coiling Waveforms.
From: Tesla List <tesla-at-stic-dot-net>
Date: Thu, 7 Aug 1997 07:03:16 -0500
Approved: tesla-at-stic-dot-net

From: 	Malcolm Watts[SMTP:MALCOLM-at-directorate.wnp.ac.nz]
Sent: 	Thursday, August 07, 1997 1:23 AM
To: 	tesla-at-pupman-dot-com
Subject: 	Re: Coiling Waveforms.

Hello John,

> From:   John H. Couture[SMTP:couturejh-at-worldnet.att-dot-net]
> Sent:   Wednesday, August 06, 1997 7:05 PM
> To:     Tesla List
> Subject:    Re: Coiling Waveforms.
> 
> At 11:14 AM 8/6/97 +0000, you wrote:
> >
> >From:  Malcolm Watts[SMTP:MALCOLM-at-directorate.wnp.ac.nz]
> >Sent:  Tuesday, August 05, 1997 6:45 PM
> >To:    tesla-at-pupman-dot-com
> >Subject:   Re: Coiling Waveforms.
> >
> >Hello John,
> >                Perhaps I should elaborate a little on my original 
> >answer to this question:
> > 
> >> From:   John H. Couture[SMTP:couturejh-at-worldnet.att-dot-net]
> >> Sent:   Tuesday, August 05, 1997 2:48 AM
> >> To:     Tesla List
> >> Subject:    Re: Coiling Waveforms.
> >> 
> >> At 04:03 AM 8/4/97 +0000, you wrote:
> >> >
> >> >From:  Malcolm Watts[SMTP:MALCOLM-at-directorate.wnp.ac.nz]
> >> >Sent:  Sunday, August 03, 1997 4:54 PM
> >> >To:    tesla-at-pupman-dot-com
> >> >Subject:   Coiling Waveforms.
> >> >
> >> 
> >> >- To see the rings etc required high speed timebase settings (e.g. 5 
> >> >and 10 uS.div). I would like to say right here: if you believe that 
> >> >the secondary gets rung up and up with successive primary shots at 
> >> >300 BPS, you are wrong! The gap fires showed up as mere blips on a 
> >> >straight line. Still the sparks wax and wane and grow and die. This
> >> >is undoubtably an ionic storage/persistence effect.
> >> >
> >> 
> >> >Malcolm
> >> 
> >> -----------------------------------------------------------------------------
> >> 
> >>   Malcolm -
> >> 
> >>   Are you saying that it was possible to count the number of charges (BPS)
> >> for that special long spark? How did you isolate the long spark? 
> >> 
> >>   John Couture
> >
> >I am looking at the stored ringdown/beat envelope of a *non-breakout*
> >waveform I captured and stored in the scope *right now*. The waveform 
> >was captured at 300BPS.
> >     Time to quench: <25uS   7 complete beat envelopes, Amplitude <25%
> >of first transfer at quench.
> >     Time between breaks: 3.33333333333 mS
> >
> >Does that answer your question?
> >
> >Malcolm
> >
> >---------------------------------------------------------------------
> 
>    Malcolm -
>   
>    As far as I can determine you are the only one doing this type of
> research so we coilers will have to depend on what you find.  I do not know
> whether or not the secondary rings up with successive primary shots. This is
> a possibility but may not occur. 

Please, please do as Julian has done and get a scope onto it. I cannot
discuss things sensibly if we are talking on two different levels. 

>    By seven complete beat envelopes are you referring to the primary circuit
> or  secondary circuit?

Both, both, both!!  The beating occurs *only* in the *coupled* system,
i.e. while the gap is alight. Look up a section in a good radio text 
on IF transformers - it is all there. It is a characteristic of 
*overcoupled* double tuned circuits.

>Is it votage or current? Is it a dampened wave? What
> does non breakout waveform mean?

No spark. Coil run with insufficient primary energy to allow sparks 
to break out from the secondary. In this condition, secondary losses
pale in comparison to the gap. If one could actually quench the gap
at the end of the first pri-sec transfer in this condition, the coil 
is in the *least lossy state* it can be. So far, I have been unable 
to quench the gap to trap all energy in the secondary if it is not 
allowed to emit sparks.

> Is this from an operating Tesla coil? 

Yes. I posted everything to the list in the recent past. It is all 
there in the archives. See posts on Optimal Quenching, Mini 
Coils, How we Should Measure......, etc. theoretical topics but with 
measurement thrown in. I just haven't got time to repeat myself. 
Sorry. If you want to see some hand drawn waveforms, check out the 
Corum's literature. I will have some *real* scope photos sent to 
TCBOR in several weeks along with photos of the coil in action.

Malcolm

> What
> is the input wattage, operating frequency, spark length. I have lost track
> of what you are testing.
> 
>    John Couture
> >
> >
> 
> 
> 
>