Hi,
can I use a transformer from a UPS? (Uninterruptible Power Supply)
I acquired an APC 520ES UPS, and looking
inside it I found a huge transformer, and I was wondering
if I could use it as a power supply, if so, what current
capability can I expect from it? I'm guessing it's
a kind of step-up transformer, but does it work the other
way?

thanx.