Thanks to the generosity of a fellow radio club member I now have the
use of a Yaesu FT-1000 (no Suffix). Since it has a built in antenna
tuner, that I'm hoping to use, I need to ask what the best way is to
couple the window line that feeds my folded dipole antenna into a
short; say twenty feet; coaxial feeder from the radio. I used an Icom
AH4 antenna coupler with my FT-857D on this antenna with very good
results. I would guess that I need a balun but which type is a
mystery to me.

So is a balun a good solution to this challenge or should I resort to
the two pieces of coax in parallel that I have read of elsewhere?
When you use the two parallel coax leads do you ground and/or bond the
two shields at the transceiver end? Further since the FT-1000 does
not have obvious balanced feed line terminals would I connect a
balanced feed line to the ground terminal and the the center pin of
the SO239 connector by using say a banana plug.

Since I really am asking questions I hope there is already a consensus
answer as I would not be able to sort out the various sides of any
debate. Thank you in advance to all who choose to tackle this
question.

Tom Horne W3TDH