[raybbr]

An inductor (one coil) will change power factor, as will a capacitor. I was talking about the inability of a transformer to change an input frequency into a different output frequency. The phase angle relationship between primary and secondary in a transformer is variable, too, by changing the nature of the load(s).

True.

What transformers can do (and in fact, are physcially destined to do)...

I misread "destined" as designed to do...

[Cboldt]

-- I misread "destined" as designed to do... --

Heh. That's a very natural mistake. Bad pick of words on my part, just for that reason. "Pysically inevitable" would have been much better.