my thinking is it was some form of 3 phase setup

the primary looks to be approx 13 guage wire
and the secondary looks to be approx 1/8" square copper

the two windings are seperate from each other in a shell configuration
both wound on the center leg of a standard E type core.

nice heavy units, my thinking is maybe 3kva, but might be the
type alt42 might mean 4.2 kva,, but maybe not?

if they are a good 2kva they will work very well for my application i would
think.

don't look to have ever been overheated, copper looks pretty good where it
is visable.

getting very hard around here to find units such as these surplus, so i figured
the 40 bucks i spent for the three was a pretty good deal.

i think i will plug in 120 into the primary and see what i get off the secondary.

guess i will find out one way or another.

thanks