1.) Name:  Duncan Hellmers

City:  Sydney
State:  New South Wales
Country:  Australia

 Email:  duncanhellmers@
hotmail.com

2.) NST Faceplate Rating:  3.6kV  25/30mA  (108 Watts)

3.) Category:  2

4.) NST Secondary Short Circuit Current:  25/30mA

5.) NST primary voltage when operating:  240V/50Hz

6.) Specs:

Secondary Specifications
[All units in  mm  unless indicated]
Coil Diameter    48
Coil Height    230
Height/Width aspect ratio    4.79:1
Coil self capacitance      3.605521
Coil inductance     9.5435
Wire AWG - diameter  32 (build  1 insulated) AWG  +  0 additional space = 0.22352
Number of turns per  cm    44.73873
Total number of turns    1029.0
1/4 Lambda frequency (Hz)    483138.9
Wirelength     155.1682 Meters
Total capacitance (pF) for 483138.9 Hz  -  11.3707
Top load capacitance required (pF)    7.765182

Primary Specifications
[All units in mm unless indicated]
Flat Spiral Type.
Primary inductance 22.5355uH
Primary to Secondary spacing 13.0
Coil spacing 3.0
Wire diameter 4.0
Number of turns 12
Number of standoffs 4
Hole offset between standoffs 1.75
Primary coil outside diameter 236
Primary coil inside diameter 74
Coil width   81
Coil length 5.84 Meters
Coil height and pri/sec ratio 230.0 - 1.026:1
Tap point - Turn # 6 @ 122 Degrees 

Tank Capacitor Specifications
MMC Capacitor.
Individual capacitor rating    0.022 uF  @1500v, RS Components part number 114468
Length of string    5
Number of strings   6
Total MMC rating    0.0265 uF  7500v
Bleeder resistor rating     10 M 3500v

Spark Gap Specifications
All units in mm unless indicated
Type   single static gap.
Electrodes  50 by 22 Cu 'T' connectors
Quenching   50 CPU fan (speed controlled)

 Top Load Calculations
Sphere OD   220 mm
Sphere capacitance (pF)    12.4 approx

7.) Have you performed the required 5 minute preconditioning run?:  Yes.

8.) Longest recorded discharge: 10.5 inches.