It would be (and was often used to go from unbalanced to balanced,
or vice versa) , if the transformer was say , wound one to one , with
the primary, or secondary center tapped, the center tap connected to
one leg (perferably the "ground" side) of the other side of the
transformer. Could accomplish the same with a 110 volt to 220 volt,
center tapped xfmr, again tyeing the center tap to one side of the
primary (but for connection to your ac outlet, NOT the safest
construction proceedure! This was the tecknique used from 75 ohms
unbalanced to 600 ohm ballanced (tho obviously, the winding ratio
was different)! Jim NN7K



John Smith wrote:
Then if I hook up a power transformer off 125V, and the secondary is in a
circuit where there is NO return path to ground (and it is suppling a
push-pull circuit), I must stipulate that it is a "60Hz BALUN????"

Give me a break!!!

Regards,
John