True, it is the proportions of the upper half to the
lower half that
don't match. Also the lower part of the Straight-8 does not have doors
and the upper doors are attached to the computer, if the computer is
gone, I would expect that the doors would be gone too.
http://www.megabaud.fi/~setala/pics/pdp8-6p.jpg
Look at all that airspace in this machine. Certainly a Straight-8
could fit in the Dallas mystery rack.
Realize that DEC in 1960s was fond of never standardizing their
components (especially paint jobs and cosmetics). Minor variations in
the racks really do not matter.
--
Will