I have an 11/03L carcass and am hoping to use the
backplane for a set of
11/73 boards I've acquired for a friend.
I would be very cautious installing the 11/73 boards into an 11/03
backplane. I have numerous BA23 chassis here if you need one but I would
look locally for a MV2 or 3 to save shipping costs. I usually pick up MV2's
for $5 to $50 depending on what is in them.
Also look for the BA123's. They were only sold for MV's but they make good
PDP11 test beds. I have a couple here just for testing PDP11 parts.
Dan Burrows