The coil form is 3"acrylic tubing wound with heavy insulated #26 awg I made the secondary tall 22" H/D 7.33/1 , now I know that this is supposed to be to tall and the wire should be bigger but I wanted the Inductance .I also use huge topeloads on this coil this was all an attempt to allow me to use large primary capacatance <while keeping at LEAST 8 turns on my primary coil> in case I want to run it off of microwave transformers.I now use two 12000V 60ma neon transformers.Thay work quite well:) The primary is 1/4 soft copper on a 25deg angle It is a old primary I modified .I will build one that is at a 35deg . I set my toploads on top of a large salid bowl this acts as an excellant corona shield. I have had ZERO strikes to primary and very few to ground ,must go out to the side while a few will reach up . The two x-formers put out 1440VA of power I lose 10% in the rf filter Iam now using a R-C
set up
I make the two x-formers charge .025uf MMC the spark gap is set a little closer than par<1.42"> my gap is set at 1.2"
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