Re: Final test on new TC

To: tesla-at-poodle.pupman-dot-com
Subject: Re: Final test on new TC
From: Tesla List <tesla-at-stic-dot-net>
Date: Wed, 26 Mar 1997 00:02:38 -0600
Approved: tesla-at-stic-dot-net
Subject: 
        Re: Final test on new TC
  Date: 
        Tue, 25 Mar 1997 11:03:25 -0500 (EST)
  From: 
        FutureT-at-aol-dot-com
    To: 
        tesla-at-pupman-dot-com


        Skip Greiner wrote:

>  k: .19 with sec mounted 4" above top turn of primary


Great results Skip!    Interesting that your k value is close to the
magic
value of .22, it would be interesting to observe the pri. or sec. RF
waveform
now to see if you're seeing "deep and clean" beat notches which would
indicate "magic value quenching action".  You might be quenching more
quickly
too with your present set-up.

   John Freau


>  Discharge length: 48" to 56" with occasional jumps to 60"
 
>  Due to the shortness of the secondary, no strike rail is required.The
> cap and tranny are in very close proximity to the primary and they do
> not take any hits from the toroid either. They are nearly at the same
>  level as the primary.
  
> 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.*
> Another interesting point: my safety gaps are set to only about .25" yet
> they never fire when the coil is tuned as described.
 
> Next step: onward to 1.8kw, 15kv-at-120ma. Who knows, maybe 72" with 1.8kw.
> I think that to achieve tuning with a larger primary cap I will have to
> rewind the secondary with a smaller diameter wire, or maybe a wire with
> thinner insulation.
 
> Skip
  >>