[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [TCML] RE: musing on lists ( Wireless Transmission Theory)

Greetings,
This is Tesla's own sketch of his preferred transmitter configuration developed at the Colorado Spring's experimental station: http://www.teslaradio.com/images/csn-200-6a.gif . [CSN, pp. 190-191, 200, #6] This configuration was incorporated into the initial Wardenclyffe design.
This is a basic rendering of that same design (C/S #6). A receiving circuit is standing out to the right: http://www.teslaradio.com/images/image012-1.gif . This configuration represents the initial Wardenclyffe design, but it could not be implemented. By the way, this is an earth-resonance transmitter.
The initial Wardenclyffe design plan called for the installation of two 600-foot tall towers in relatively close proximity to each other. The two-tower idea could not be implemented due to financial constraints, which led to a series of modifications. The first of these led to the arrangement shown in a sketch dated May 29, 1901: http://www.teslaradio.com/images/image014.gif . An electrical oscillator or discharging circuit, consisting of a resonance transformer and an extra coil, is coupled to the tower structure through an adjustable air gap. The tower cupola is supported on electrically conducting legs, which, in turn, are attached to a substantial grounding system. The capacitance of the cupola relative to the environment and the high-potential oscillator terminal, along with the inductance of the tower legs comprise the separate resonant LC circuit which Tesla designated the "free system."
Here are the two Wardenclyffe design drawings that John Cooper has placed on his website. They are also variations of the initial Wardenclyffe transmitter design of 1901 [C/S #6]. Notice the independent grounds. 

Fig. 1.) http://www.teslaradio.com/images/image016.gif ,
The above diagram (fig. 1) includes a low-frequency alternator and high-voltage power supply transformer connected to a disruptive-discharge type oscillator. The circuit incorporates a dual inductor-capacitor [LC] arrangement in the oscillatory transformer primary tank circuit along with dual secondary windings. Independent tuning the two sides of the circuit to different frequencies (n/4 lambda, n being an uneven number) would result in the development of a higher order wave complex beyond the fundamental resonant frequency of the extra coil. ("The transmitter was to emit a wave-complex of special characteristics. . . ." [MY INVENTIONS]; ". . . the transmitter was designed to emit a wave-complex exactly matching the [receiver] combination in the number and pitch of individual vibrations, their groupment and order of succession. . . ." [TESLA'S TIDAL WAVE TO MAKE WAR IMPOSSIBLE, English Mechanic and World of Science, May 3, 1907, p. 296.]) 

Fig. 2.) http://www.teslaradio.com/images/image018.gif .
In the above diagram (fig. 2) the straight conducting legs have assumed a spiral form. An obvious advantage would be a reduction in the structure's overall height above ground level. Also, notice that the number of turns varies from leg to leg. They are also contra-wound. This too would result in the development of what might be called a higher order wave complex by the transmitter-a form of spread-spectrum frequency-division multiplexing. The important things to be noticed about these design drawings are the techniques that Tesla used to create the wave complex. The single-tower configuration itself was a total failure.
Tesla began operational testing of the Wardenclyffe plant in July 1903 and it appears that he was not at all satisfied with its performance. While it is likely the two-terminal earth resonance transmitter could be made to work properly, it can be seen that he experienced difficulty with the single-tower implementation of the design. His experiments with the 1899 through 1901 configuration led him to write his underwriter J.P. Morgan on November 5, 1903, 

Dear Mr. Morgan:-
The enclosed bears out my statement made to you over a year and a half ago. The old plant has never worked beyond a few hundred miles. Apart of imperfections of the apparatus design there were four defects, each of which was fatal to success. It does not seem probable that the new plant will do much better, for these faults were of a widely different nature and difficult to discover. As to the remedies, I have protected myself in applications filed 1900-1902, still in the office. 
                             Yours faithfully,
                                               N. Tesla

    The "old plant" refers to the Colorado Springs Experimental Station.
As for the "remedies" protected in applications filed between 1900 and 1902, and "still in the office," the only patented invention meeting these criteria is APPARATUS FOR TRANSMITTING ELECTRICAL ENERGY, No. 1,119,732, issued Dec. 1, 1914. Comparing the two basic circuits the most obvious difference is the elimination of the stand-alone extra coil or free [oscillating] system and the plasma coupler (C/S #6]. The entire transmitter is now comprised solely of the discharging circuit-an oscillatory transformer with an extra coil connected directly to the elevated terminal [C/S #1]. 

Fig. 3.) http://www.teslaradio.com/images/csn-200-1a.gif .
Fig. 4.) http://www.teslaradio.com/images/14-083'.gif .
By the way, all three Wardenclyffe design drawings came from the Nikola Tesla Museum, were passed along to Leland Anderson and used as illustrations in his article "Rare Notes from Tesla on Wardenclyffe," published in ELECTRIC SPACECRAFT A Journal of Interactive Research, Apr/May/Jun Issue 26, 1998. 

. . . and on . . .

Gary Peterson
----- Original Message ----- From: "William Beaty" <billb@xxxxxxxxxx> 
Subject: Re: [TCML] RE: musing on lists ( Wireless Transmission Theory)


On Sun, 10 Feb 2008, Ed Phillips wrote:


    It would indeed be most fascinating to know what he was thinking and
what he thought he'd learned by the time he went to CS.


Getting inside Tesla's head and seeing things through his eyes has given
me some big "aha" experiences.  For example, in these two diagrams, did
Tesla describe the effect produced by the extra spark gap?  Or the spiral
supports?

  http://www.tesla-coil.com/images/Magnifier%202.jpg
  http://www.tesla-coil.com/images/Magnifier%201.jpg

William J. Beaty
----- Original Message ----- From: "Daniel Kline" <daniel_kline@xxxxxxxxxxx> 
Subject: Re: [TCML] RE: musing on lists ( Wireless Transmission Theory)


Ummm...From which Tesla-patents were those exact drawings taken?
Thanks,
Dan K.
----- Original Message ----- From: "Lau, Gary" <Gary.Lau@xxxxxx> 
Subject: RE: [TCML] RE: musing on lists ( Wireless Transmission Theory)
X . . . The spiral supports seem to be a precursor to the beehive insulators in use today, as a means of extending the surface arc distance. . . . No mysteries at all. 

Gary Lau
MA, USA 


_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla