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Re: Final test on new TC

Subject: 
            Re: Final test on new TC
       Date: 
            Fri, 28 Mar 1997 08:46:16 -0800
       From: 
            Skip Greiner <sgreiner-at-wwnet-dot-com>
Organization: 
            Greiner, Ltd.
         To: 
            Tesla List <tesla-at-pupman-dot-com>
 References: 
            1


Tesla List wrote:
> 
> Subject:
>             Re: Final test on new TC
>        Date:
>             Tue, 25 Mar 1997 15:01:11 +1200
>        From:
>             "Malcolm Watts" <MALCOLM-at-directorate.wnp.ac.nz>
> Organization:
>             Wellington Polytechnic, NZ
>          To:
>             tesla-at-pupman-dot-com
> 
> Hi Skip,
> 
> > For the first time I have witnessed what R. Hull refers to as synergy. I
> > never have been able to get the discharges to emanate from the purposely
> > placed bump on the toroid. I always seemed to have multiple discharges
> > which rotated around the toroid but never concentrated at one spot. In
> > this particular instance I achieved what appeared to be pretty good tune
> > between the primary turns, cap and toroid size.At this point I started
> > to decouple the secondary by raising it .75" at a time. Interestingly
> > with the secondary almost exactly 4" above the primary the discharges
> > became concentrated at the bump on the toroid. .75" above or below this
> > point caused the discharges to again split up and rotate around the
> > toroid. Also at this coupling the primary tuning became very sharp. Plus
> > or minus one turn reduced the discharges by almost 1/2. Changing the
> > size of the toroid also reduced the discharge length. *This is synergy.*
> 
> How did discharge length vary with different secondary heights when
> the primary was exactly tuned?
> 
> Malcolm

Hi Malcolm and All

I am sorry that I did not take specific data so I cannot give a tuning
curve. I am going to back up now because I think there may be a
relationship between the k factor and the quench. At the point where the
discharges went from the rotating streamers to a single discharge point
from the toroid bump there was a dramatic increase in length that one
could not miss. The rotating streamers were probably about 40"(+) but
when the quench  got into the second notch it seems that all of the
energy gets concentrated into the one point and that's where the
discharges start going well over 50". As I mentioned in another post,
there are times when the quench jumps to the first notch and this may be
the time that the discharges reach the 56" to 60" length. I do not know
why the quench changes. It is not periodic...definitely random. Needs
more investigation. Raising or lowering the secondary away from this max
point causes the discharges to be reduced in length and start the
rotating again.