Power Source

• 12 kV, 60mA NST
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Safety

• I used a Terry Fritz Filter.  The schematic for this can be found here.  Or at Terry's Site.
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Capacitor

• New Cap:  I have made a larger than resonant cap.  It is made of 2 strings of ten 0.1μF Caps in Series, each with bleeder resistors.  The total capacitance of this cap measures .02038μF.
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• Old Cap:  Geek Group MMC.   Nine  0.1μF Caps in Series (each with bleeder resistor)  Total capacitance originally measured .0116μF, however recent measurements were closer to .0165μF.
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Sparkgap

• New Gap:  I now have a SRSG.  I am using an 1800RPM Synchronous motor, and have a saftey gap that is set to fire at about 80% full power.

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• Old Gap:  I have my gap set at around .25".  I have a squirrel cage blower directed to the gap for quenching.

Primary

• Mounted on 1" PVC.  I used .25" copper tubing with .25" spacing.  Inner radius is 6" (1.5" from secondary).  Total of 13.5 turns.  I hold the tubing in place by placing a layer of insulating foam on top of the copper, then I screwed some small paneling strips on top to hold everything snug.
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Secondary

• Secondary is 4.5" outer diameter PVC.  Wound with AWG 24 wire to a height of 25.5"
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Toroid

• I mounted 4" dryer ducting on an 11" wooden disk.  Then covered everything with aluminum tape.  Ended up with an outer diameter of 19".
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Variac

• I use a 1.1kVA Variac to control the the power going to my coil.  Yes those are ear plugs in the picture.....the coil is loud indoors.
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