Tom Quackenbush wrote:

jim rozen wrote:
Terry Given says...

sorry Rich, but the two ends of a center-tapped winding *are* 180
degrees out of phase. sin(wt+pi) = -sin(wt).

Referenced from the centertap, of course.

This is something that drives electricians just pure
bonkers. They don't get it.

Uh-huh. I'm not an electrician, but I play one on usenet (also,
Gary seems to be MIA).

What happens when you combine two out of phase signals? What happens
when when you combine the two 120v circuits?

You get 240 single phase service.

Which is great because that's what I need for my air compressor.

George.