At 05:17 PM 2/17/00 -0500, McGuire wrote:
>  Qbus is Qbus!

Not exactly, there is 18 bit Q-bus, 22 bit Q-bus, and Q/CD Q-bus (also 22
bit) Quad wide cards may or may not work in a Q/CD slot, Dual wide cards
will work in the AB slot of Q/CD or a Q slot if they are the same number of
bits as the backplane (18/22). Its all written up in the MicroNOTES on the
PDP-11 FAQ site.

--Chuck