A little birdy told me that a 200 is about 20 lbs, and does have a toroidal transformer in it (although very "mashed"!). That would imply AB, right?

I don't know anything , but class H to me means "cheap receiver".

(My Equitech 2Q, at 2 rack units high, has a 45 lb transformer in it. So 1 rack unit, ~20 lbs, could work.)
_________________________
If it's not worth waiting until the last minute to do, then it's not worth doing.

KevinVision 7.1 ... New and Improved !!