Re: THOR Bang energy vs. streamer length measured

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Malcolm Watts" <m.j.watts-at-massey.ac.nz> 

On 27 Jul 2004, at 13:02, Tesla list wrote:

 > Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com>
 >
 >
 > I respectfully disagree with this conclusion.
 >
 > Pulses/sec DO affect spark length.  A typical med size TC has a 4-5 ft
 > long spark even though the actual output potential is only 140-160 kV
 > range.

What he's saying is that the growth/power dependence behaviour
deviates *above* some particular breakrate, in this case about 300BPS.
Questions that follow are:

- does this dependency hold for all coils and coil configurations?
- does this dependency hold for all energies for all coils?

Based on recounted experiences from the past it most likely doesn't
and the breakrate figure might well be different for different coils
and terminal capacitances, terminal ROCs and so on. Dependencies of
this nature have been a research bugbear in coiling ever since it
began. It really is time to get it sorted in my opinion but takes
dedication, time money and a single-minded commitment, difficult for
most if not everyone to come by.

Malcolm

 > As the pulses/sec increase the residual ions in the air help cause the
 > spark to lengthen.  I've seen this by shooting photographs of a coil
 > with a 10 ft. long spark with a high speed camera.  You can see the
 > "spark growing" phenomonea.
 >
 > If you are saying a spark length is independent of pulse rate, trying
 > running a single shot using an ignitron.  There is no way a single
 > shot TC is going to develop the same spark length as a coil running at
 > 480 pps.
 >
 > We run our model M-150 at 480 pps to deliver a 8-9 ft long spark at
 > 8.5 kVA average input power.  When we run it in single shot mode to
 > measure potential the spark output is a mere 24-28 inches.
 >
 > Dr. Resonance
 >
 > Resonance Research Corporation
 > E11870 Shadylane Rd.
 > Baraboo   WI   53913
 >
 >
 >
 >  > The BPS won't affect sparks length. For real! You will achieve much
 >  more > often a certain distance with a higher BPS (see my 10.7J case)
 >  and will > reach a top hit% dependent on your bang energy but that's
 >  it.
 >
 >
 >