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Re: Secondary Theory (Was Bipolar Coil)-Heretical view
Hi,
Reffering to the two Electrum measurements at:
http://www.lod-dot-org/electrum/sphere100us.jpg
http://www.lod-dot-org/electrum/sphere20us.jpg
The first photo shows the sphere to arc current burst as having a frequncy
of about 38kHz. The second photo is a close up showing the same frequency
with some high frequency spiking. The load I mentioned only simulates the
current draw causing the main 38kHz signal. In my paper at:
http://www.peakpeak-dot-com/~terryf/tesla/experiments/modact/modact.html
in the very last photo, you can see my current to the arc was also at the
fundamanetal of 110kHz in my case.
There is some higher frequency fun stuff going on but, in general, the
load I mentioned simulates the effect of the streamers.
Terry
At 10:52 AM 5/19/99 -0400, you wrote:
>Hi Terry, All,
> 220000 Ohms with 5 pF gives an RC time constant of 1.1
>microseconds. The waveforms for your coil and Greg's coil show
>streamer current spikes faster than that.
>
>Last year's post about my measurements and Greg Leyh's electrum
>measurements, determined that his giant coil and my test coil were
>both
>driving the same arc impedance which was equivalent to ~220000 ohms in
>series with a 5pF cap. This was remarkable in that our two systems
>have
>vastly different power levels but seemed to be seeing the same load
>impedance. The equivalent cap and resistor load has been used in many
>models that accurately simulate the load on the system. Interestingly,
>it
>seems to be fairly linear and time-invariant.
>
>Terry
>
>
>
References: