Roger:

I think you are trying to make a simple task difficult. Think about why you
can't just hook a feeder to the base of the tower. Actually, you can,
except matching it is a bitch because of the verrrry low impedance. So, go
up a few feet (I use 20', as it is a common tubing length), and make it a
gamma, delta, or whatever is convenient. Then use a "tuner" to match
whatever appears to 50 ohms. Mine is a few microhenries of series
inductance, with a few hundred picofarads of shunt capacitance at the 50 ohm
end. I actually use a fixed inductance and a series capacitor instead of a
variable inductor, but that is a construction detail.

--
Crazy George
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