Re: Tesla Coil RF Transmitter

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Gary Peterson" <gary@xxxxxxxxxxxx>


> Original poster: Ed Phillips <evp@xxxxxxxxxxx>
>
> . . . As for his setting up standing waves around the earth, I don't have a
> quote for that but suspect that he did say it. . . .

A number of pertinent statements appear in the 
patent ART OF TRANSMITTING ELECTRICAL ENERGY 
THROUGH THE NATURAL MEDIUMS 
(http://www.teslaradio.com/pages/patents/142352.doc)

   "The specific plan of producing the 
stationary waves, here-in described, might be 
departed from.  For example, the circuit which 
impresses the powerful oscillations upon the 
earth might be connected to the latter at two 
points [a type-two transmitter, see 
http://www.teslaradio.com/images/image004.jpg].";

In referring to terrestrial standing waves we are 
speaking of Schuman resonance and Earth 
resonance.  I evoke two different resonances 
because there is evidence if Tesla did indeed 
excite a terrestrial rasonance mode while at 
Colorado Springs, it was not necessarily a 
Schuman resonance mode. This has been suggested 
by Charles Yost (R.I.P.), Leland Anderson, and André Waser.

Schumann resonance is studied by observing the 
effects of lightning discharges upon the 
electrical condition of the earth, specifically 
the naturally occurring electric and magnetic 
fields.  Earth's electrical condition can also be 
modified by artificial means, as it appears Tesla 
did, by use of a properly tuned and configured electrical oscillator.

Schumann resonance:
   Fundamental period of resonant oscillation: 
shifts between 7.5 - 7.9 Hz. (Anderson, Bradford)
   Q: 3 to 12 (Anderson, Bradford)
   Wave description: "cavity wave" (Yost), "surface wave" (Wasser)
   Detection: buried 3-component magnetic field 
sensors & multiple component elevated electric field sensors

Earth resonance:
   Fundamental period of resonant oscillation 
(based upon round-trip time): 11.76393 (Yost), 11.79 Hz. (Wasser)
   Q: [unknown]
   Wave description: "electrodynamic wave" 
(Sommerfeld), "conductor wave" (Yost) "pressure wave" (Wasser),
   Detection: buried 3-component magnetic field 
sensors & buried 3-component electric current sensors

> . . . I can't imagine any
> instruments sensitive enough for observing this, either then or now. . . .

   "The presence of the stationary waves may be 
detected in many ways.  For instance, a circuit 
may be connected directly or inductively to the 
ground and to an elevated terminal and tuned to 
respond more effectively to the 
oscillations.  Another way is to connect a tuned 
circuit to the ground at two points lying more or 
less in a meridian passing through the pole E or, 
generally stated, to any two points of a different potential. . . .
   "In collecting the energy of these 
disturbances in any terrestrial region at a 
distance from their source, for any purpose and, 
more especially, in appreciable amounts, the most 
economical results will be generally secured by 
the employment of my synchronized receiving 
transformer.  This invention, forming part of my 
system of transmission of energy through the 
natural media, has been fully explained in the 
patents first cited here . . ." [ART OF . . .]

    "Here I have the receiving circuit, 
similarly connected to ground and to an 
antenna.  Then I have a second tuned circuit in 
which are included the operating devices. . . . 
If you take this fourth circuit entirely away, 
and leave only that circuit here, the antenna and 
the ground connection, then that is the ideal 
condition for the flow of the current in this 
receiving circuit. . . . the ideal condition 
requires that you should have here a device which 
only requires pressure and no current; and once 
you have a device which does not need any current 
but merely acts by pressure and has no internal 
capacity, so that there will be no capacity current in the
circuit, then that is the ideal receiver. . . . I 
have invented such an instrument and have 
demonstrated its efficacy. . . . Quod erat 
demonstrandum." [N.T. On A.C., pp. 99-100]

> . . . and wouldn't believe him if he said he had.

I, for one, believe him.

> Ed

Gary