On 07/25/2016 10:10 AM, Ralph Mowery wrote:

I don't think a tapered line would work over a broad range,and even if
it did, I would not want to try to build and use one.
Sort of comes under the open wire feeders. I just would not want to use
them due to getting the feeders into the shack.


Hello, and again, while not advocating these for ham use, decades ago
J.W. Duncan and V.P. Minerva in the February, 1960 issue of Proceedings
of the IRE described a hundred-to-one bandwidth tapered-line balun. The
one constructed for the article provided for interfacing a 50-ohm coax
to a 15O ohm open wire line. VSWR never exceeded 1.25 from 43 MHz to
2200 MHz (50:1 bandwidth). Sincerely,


--
J. B. Wood e-mail: