Correct me if I am wrong, (someone will) but if you don't ground the
bottom, doesn't that act like a 1/4 wave transmission line that is
-not- shorted at one end, therefore a high impedance and voltage
does -not- appear at the top? Or since it is only locally grounded, with
weak capacitive coupling to global ground, you have a 'weak' ground
and therefore not as high an impedance or voltage as with a good ground.
Could you get around this grounding requirement by using a 1/2 wave coil,
ie, both ends are high impedance and voltage, with the center either
grounded or not grounded? Didn't Tesla do just this with some of his coils?
... Just putting my 2 cents in... Whadya mean, ya want a discount!
___ Blue Wave/QWK v2.12