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Re: [TCML] RF Ground and Brass
I had incredibly hot primary-to-secondary arcing at the base of my 6"
SISG coil until I connected the secondary base to earth (via a length of 10ga
stranded THHN). At first I thought it was the primary arcing to the secondary,
until I realized it was the floating secondary arcing to the primary!
Without grounding the base of the secondary somehow, you've got a
When the secondary arced to the primary, it found it's ground point (or
the nearest thing to it). That's not really bipolar. I guess your
thinking the fact it arced to the primary in the first place?
I've run without the RF ground and did notice a performance difference
on a little 2" coil and no difference on a 4.5" coil. The small coils
frequency was effected enough to pull it out of tune, but not so for the
larger coil, so it sparked just fine. It did seem a little out of wack,
but still gave good spark lengths (and that's when some house equipment
died). So, not all coils react the same.
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