Re: Beginner Q's

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Michael Brooks <screaminfleadesigns@xxxxxxxxx>

Ok I think I need some education!
If you will permit me I would like to post the 
calcs for the coil I am trying to build.
I understand some of what it means but I am an 
electrician not an engineer.  Any pointers or 
information on this design would greatly help!!

'Flea

POWER SUPPLY

Allanson Luminous Tube Transformer                            120v input
                                                                                                15kv 
output
                                                                                                30ma
                                                                                                450VA

General Electric Volt-Pac Variable Transformer               120v input
                                                                                                120 
? 140v output
                                                                                                7.5A

SECONDARY COIL

Outer 
Diameter 
3.5 inches
Coil 
Length 
14 inches
Aspect 
Ratio 
1:4
Turns 
651.1628N
Windings 
#24 Gauge Magnet Wire
Wire 
Length 
596.3566 feet
Resonant 
Frequency                                                           680.287 KHz
RF 
Resistance 
249.68 12 Ohms
XL @ 
Resonance 
35618.78 Ohms
Max Unloaded Q @ Resonance                                        142.657
Inductance 
8.337334mH
Distributed / Stray 
Capacitance                                         6.572969pF
Approximate Loaded 
Q                                                       50.94893
Terminal 
Capacity 
6.572969pF
Resonant Frequency Drop 
to                                            480.963 KHz


TRANSFORMER / CAPACITOR MATCHING

Max Primary 
Capacitance                                                   .0038 microfarads
Minimum Voltage 
Rating                                                    37500 Volts


SPARK GAP

Type 
Static
Number of 
Gaps                                                                   8
Gap 
Spacing 
.010 - .020 inches

TANK CAPACITOR

Type 
Rolled
Plate 
Thickness 
Aluminum Roof Flashing
Dielectric 
;                  .040 Inches (40 mils)  Polypropylene
Plate 
Length 
60 Inches
Plate 
Width 
14 Inches
Capacitance per 
Roll 
.019 microfarads
Voltage per 
Roll                                                                    8000v
Rolls Required (Series Connected)                                   5
Final 
Capacitance 
.0038 microfarads
Maximum Transformer 
Capacitance                                  .0038 microfarads
Final Volt age 
Value                                                              40kV


PRIMARY COIL
< B style="mso-bidi-font-weight: normal">
Inductance Needed for 
Resonance                                   14.4microhenries
Type 
Flat Spiral
Conductor 
.24? (1/4?) copper tube ? .3725? (5/16?) OD
Number of 
Turns                                                                  8N
Spiral 
OD 
14.75? (14-3/4")
Spiral 
ID 
5.375? (5-3/8?)
Turns 
Spacing 
.3125? (5/16?)
Approximate Tap 
Point                                                       Turn 7-8


TOPLOAD (TOROID)

TOROID 1

Torus 
Size 
1? X 6?
Torus 
Capacitance 
5.10 pF ? This to match secondary terminal capacity
Suggested 
Diameter                                                            2? - 4?
Suggested Power 
Level                                                      200W ? 400W

TOROID 2

Torus 
Size 
2? X 8?
Torus 
Capacitance 
6.80 pF ? This to match secondary terminal capacity
Suggested 
Diameter                                                            3? - 5?
Suggested Power 
Level                                                      400W ? 800W



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