On Tue, 10 Jan 2006 20:08:05 -0500, Wayne.B
wrote:

The AT-134/140 is not designed to drive a balanced feed line, only
unbalanced. You could probably drive a balun coil in reverse however,
and run co-ax up the mast to a dipole.

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Upon reflection, that didn't come out right. What I meant was that
you could probably drive the unbalanced side of a balun with the tuner
if you wanted to run twin lead or ladder line to the antenna.