Re: 7.1Hz, Frequency variation and Q

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Barton B. Anderson" <bartb@xxxxxxxxxxxxxxxx>

Hi Ed,
Ran JAVATC. The 7.1 Hz "recipe" is below. (The Great Coil)

BTW, this undertaking would be right up there with the great Pyramids of Egypt!
I can already imagine the best sellers list 3000 
years from now (The Great Coil - Was It Built by Aliens?) 8-)

Take care,
Bart

Tesla list wrote:

> Original poster: Ed Phillips <evp@xxxxxxxxxxx>
>     I'd like to see some proponent of the system use one of the various
> Tesla coil design programs to design a system that could work at 7.1 Hz
> with a power of say only one megawatt.  How big would the coil be?  How
> much wire of what size?  Topload?  Estimate of losses?  (For the latter
> calculating the DC resistance of the wire would give a lower limit.)
> All the work in doing the calculation has already been done - someone
> should take advantage of it.
J A V A T C v.10 - CONSOLIDATED OUTPUT
Sunday, July 17, 2005 8:38:51 PM

Units = Inches
----------------------------------------------------
Surrounding Inputs:
100,000 = Ground Plane Radius ( or 1.578 miles)
----------------------------------------------------
Secondary Coil Inputs:
Current Profile = G.PROFILE_LOADED
3,775 = Radius 1 ( or 314.58 feet, so a coil diameter of 629 feet!)
3,775 = Radius 2
1,000 = Height 1 (83.3 feet above the ground)
38,750 = Height 2 (3,229 feet to the top!)
18,875 = Turns
1 = Wire Awg (undersized)

Top Load Object Inputs:
Toroid #1: minor=7550, major=30200, height=42525, topload
(about 1/2 mile for outer diameter. 1/10 of a 
mile for minor diameter. And 0.67 miles high!)

----------------------------------------------------
Secondary Outputs:
0.0071 [kHz] = Secondary Resonant Frequency = 7.1 Hz
90 [deg°] = Angle of Secondary
37,750 [inch] = Length of Winding
0.5 = Turns Per inch
1.71071 [inch] = Space Between Turns (edge to edge)
37,308,049 [ft] = Length of Wire
5 = H/D Aspect Ratio
4,624.26 [ohms] = DC Resistance
550,578 [ohms] = Reactance at Resonance
560,762 [ohms] = Forward Transfer Impedance
9,450,426.24 [lbs] = Weight of Wire
12,341,855.734 [mH] = Les-Effective Series Inductance
12,078,153.679 [mH] = Lee-Equivalent Energy Inductance
13,148,413.282 [mH] = Ldc-Low Frequency Inductance
40,713.937 [pF] = Ces-Effective Shunt Capacitance
38,409.985 [pF] = Cee-Equivalent Energy Capacitance
64,935.017 [pF] = Cdc-Low Frequency Capacitance
976.352 [mils] = Skin Depth
32182.764 [pF] = Topload Effective Capacitance