I picked up two of these yesterday. I searched the net but didn't find
much information about them but I did find enough so that I know what they
are. However one of the ones that I have doesn't have the rounded top.
Instead the top is flat and it has a rectangular opening in it and a
circuit board sticking up into the opening. It looks like it was made for
an expansion chassis to mate with. Anybody know more about that?
Joe