Re: 7.1Hz, how the heck did Tesla succeed?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Mike" <mikev@xxxxxxxxxxxxxxxx>

HI Bill,
               Making reply from work machine, Mike here. Golka DID place an
X-ray tube on the output of the coil at Leadville, CO. He did, prior to the
setup, get lead shield plate from 2 old hospital X-ray rooms and had a safe
area with slots to look out from.
I am told the X-ray output lit off lights and so forth and there was a lot
of output; The X-ray tube was the rectifier, cold cathode type Bob had
built. I recently explained how to get the filament voltage up to the coil
top for more effective rectification.
Like in the old days when we crossed the base of hot broadcast AM towers, we
needed to feed the tower lights.
Winding a coil secondary with coax, with 2 conductors within it, like audio
wire, even 1/4 inch coax shield, will let the coil secondary be as usual but
the inside conductors remain isolated, can drive filament transformer, etc.
As the cold end of the coax, also the secondary winding, is grounded at the
base, you can feed remote power to the top via the internal wires.
So, while he did what you said with X-ray tube but cold cathode, it can also
be done with filaments.
As for the rest, well, beats me.
Mike

---- Original Message -----
From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Monday, July 11, 2005 4:21 PM
Subject: 7.1Hz, how the heck did Tesla succeed?


> Original poster: William Beaty <billb@xxxxxxxxxx>
>
>
>
> Here's an idea for a dangerous outdoor experiment.
>
> I think Mike <induction@xxxxxxxxxxx> mentioned that Golka tried rectifying
> his big coil, then sending out ~7Hz DC pulses, but wasn't able to detect
> any large Earth resonance.  As I understand it, the Q value of the Earth
> resonance is controversial, and Sutton/Spaniol claim that published values
> are wrong because they're the Q of the instruments used to measure the
> resonance (while the actual Q is higher but unknown.)  In order to see a
> resonance signal start building up, you'd have to hit the frequency
> exactly.  Also, Sutton/Spaniol note that the resonance frequency changes
> from moment to moment, causing a misperception that the Q is low when in
> fact it's high (but the peak moves around randomly which screws up the
> measurements.)  Unless Golka set up some sort of gigantic "Hartley
> oscillator" with feedback sensors, where the Earth was the tank circuit
> and his equipment was the "transistor," he'd have no hope of hitting the
> moving resonance.  The equipment would have to have to be intimately
> coupled with the Earth, where the Earth was one component of an
> oscillator, rather than the Earth just being a cavity driven by pulses
> from a signal generator.
>
> But this brings up a big issue.  If Tesla accomplished it, HOW DID HE DO
> IT?  The Earth's resonant overtones supposedly die away above 10KHz, so
> high-freq Tesla coils won't work.  Maybe Tesla built a huge 2KHz coil?
> Driven by a multipole generator?  I don't recall the Colorado Springs
> frequencies offhand.
>
> Or could he even have made a 60Hz extra coil?  With such low frequencies a
> non-resonant air-core transformer could easily be driven by mechanical AC
> generators, and only the "extra coil" would need to be resonant.  But the
> wandering Earth-resonance frequency would still be a problem.
>
> I just noticed another possibility.  Tesla had patents for vacuum tubes
> attached to the top of his coils.  Suppose Tesla was rectifying the output
> of his big coils.  This *might* be possible by mounting a bank of
> ultraviolet lamps or X-ray tubes at the top of the coil.  On the positive
> half cycle the X-ray tube turns on and ionizes the nearby air, making it
> conductive.  On the negative half-cycle it turns off, and if the frequency
> was low enough, then the ionized air-conductivity would shut off before
> the next pulse.  It would be like a gigantic mercury vapor rectifier, but
> with controlled artifical gas-asymmetry rather than the natural asymmetry
> provided by gas-immersed metal electrodes.
>
> If Tesla's big coils were pulsed-DC emitters, it would be a simple matter
> to periodically disable the UV/xray lamp banks using lower frequency
> control pulses, then regardless of the Extra coil freq, modulate the
> system to put out HV pulsed DC at any freq desired; 2KHz or 60Hz or 7.1Hz.
> Mount a "feedback coil" sensor a few miles away which senses the sky
> fields and controls the ionization lamps, and you've created that "Hartley
> Oscillator" where the Tesla Coil and ionizers act as a giant "transistor,"
> and the Earth cavity is the "tank circuit."
>
> Total speculation, obviously.   But not banned in theory!   :)
>
> I know that a few people own dental x-ray tubes.  I don't have a big
> outdoor TC myself, or an open field.  It's like amateur rocketry: observe
> the test from 100 ft away behind an earth berm!  Does anyone dare to
> experiment with this stuff?  Has anyone ever tried mounting an x-ray
> emitter at the top of a big TC?
>
> Just observing what happens when a big TC is operated *near* an operating
> X-ray tube would be interesting.  I mean, drive the x-ray tube with it's
> usual line-opeated DCHV supply, rather than relying on the intense
> e-fields of the TC itself to provide the tube drive.
>
>
>
> (((((((((((((((((( ( (  (   (    (O)    )   )  ) ) )))))))))))))))))))
> William J. Beaty                            SCIENCE HOBBYIST website
> billb at amasci com                         http://amasci.com
> EE/programmer/sci-exhibits   amateur science, hobby projects, sci fair
> Seattle, WA  206-789-0775    unusual phenomena, tesla coils, weird sci
>
>
>