Reg Edwards wrote:
Cec, to prevent the transformer inductance from completely detuning
the antenna, the transformer would have to be wound with a lot of
turns on something like an E and I dust-iron core.

Yep, somewhere around here I have a tapped autotransformer
wound on a #2 powdered iron toroid designed for 75m use.
I wound it to be installed at the twinlead/coax junction
on a G5RV to obtain a 1:1 SWR on the coax on 75m. It worked
but I found that a parallel 1000 pf cap works just as well
and is easier to clip on and off.
--
73, Cecil http://www.qsl.net/w5dxp

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