[TCML] New Coil - Any glaring errors I have made?

["P Tuck" <follies@xxxxxxxxxxxx>]

Hello.
I would appreciate it if anyone cares to look at my proposed Javatc setup
below, before I start the actual build. I have aimed for a low Res freq
whilst trying to keep the inductance up to avoid gap losses. Static gap is a
sucker (connects to my workshop Hoover) that I've built using 0.75 inch
diam' copper rods. It is grossly over engineered, but it allows for future
scope if needed.

http://homepage.ntlworld.com/follies/tesla/tesla_temp.html

I have pushed the secondary size to 4.7 inches to get the impedance and a
higher Q, or am I pushing it at 4.7 inches for a 10k/48 NST??

Main points are:-
Sec' Diam = 4.724 inch (120mm PMMA tube),  5:1 H/D ratio, 1343 turns of AWG
27, Res freq 161 Khz.
Terry Filter, Caps are 14 x 2 of the popular CD 0.15uF's giving 0.02143uF
total  (about 1.4 times the Res value) + 10Meg bleeders.

(cut down) Javatc Output
02 October 2008 22:37:27
----------------------------------------------------
Secondary Coil Inputs:
----------------------------------------------------
2.362 = Radius 1 & 2
23 = Height 1
46.62 = Height 2
1343 = Turns
0.013976 = Wire Diameter  (AWG27)
----------------------------------------------------
Primary Coil Inputs:
----------------------------------------------------
3.612 = Radius 1
11.18 = Radius 2
23 = Height 1 & 2 
10.8271 = Turns  (912 in all)
0.315 = Wire Diameter
0.02143 = Primary Cap (uF)
----------------------------------------------------
Toroid #1: minor=4, major=20, height=47, topload
----------------------------------------------------
Secondary Outputs:
----------------------------------------------------
161.8 kHz = Secondary Resonant Frequency
23.62 inch = Length of Winding
56.9 inch = Turns Per Unit
5:1 = H/D Aspect Ratio
87.4667 Ohms = DC Resistance
39539 Ohms = Reactance at Resonance
38.893 mH = Les-Effective Series Inductance
40.742 mH = Lee-Equivalent Energy Inductance
39.68 mH = Ldc-Low Frequency Inductance
24.878 pF = Ces-Effective Shunt Capacitance
23.749 pF = Cee-Equivalent Energy Capacitance
37.832 pF = Cdc-Low Frequency Capacitance
20.161 pF = Topload Effective Capacitance
149.4576 Ohms = Effective AC Resistance
265 = Q
----------------------------------------------------
Primary Outputs:  (Flat)
----------------------------------------------------
161.79 kHz = Primary Resonant Frequency
4.38 mOhms = DC Resistance
0.384 inch = Average spacing between turns (edge to edge)
44.479 µH = Ldc-Low Frequency Inductance
163.261 µH = Lm-Mutual Inductance
0.123 k = Coupling Coefficient
0.131 k = Recommended Coupling Coefficient
8.13  = Number of half cycles for energy transfer at K
24.89 µs = Time for total energy transfer (ideal quench time)
--------------------------------------------------
Static Spark Gap Inputs:
----------------------------------------------------
2 = Number of Electrodes
0.75 [inch] = Electrode Diameter
0.175 [inch] = Total Gap Spacing
----------------------------------------------------
Static Spark Gap Outputs:
----------------------------------------------------
0.175 [inch] = Gap Spacing Between Each Electrode
14142 [peak volts] = Charging Voltage
13930 [peak volts] = Arc Voltage
36454 [volts] = Voltage Gradient at Electrode
79602 [volts/inch] = Arc Voltage per unit
98.5 [%] = Percent Cp Charged When Gap Fires
10.859 [ms] = Time To Arc Voltage
92 [BPS] = Breaks Per Second
2.08 [joules] = Effective Cap Energy
418459 [peak volts] = Terminal Voltage
33.6 [inch] = Static Gap Spark Length (using energy equation)

Philip



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