On my 8.6" coil I currently have the bottom of my 9" x 30" toroid mounted 2.3" above the top of the secondary winding. I seem to be getting good performance with at least 7 foot streamers from a 4800 KVA pole pig and ballast. I see no discernible corona at the top of the secondary. Would there be any advantage to mounting the toroid higher?
Steve White
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