PDP-11/40 modified to be a PDP-11/23 - test-drb@ccmp.vtda.org

23 Jun 2016

now, there is a 11/23 I could love!  ---Ed#

In a message dated 6/22/2016 9:44:20 P.M. US Mountain Standard Time,  
glen.slick at gmail.com writes:

BACKPLANE",
...
  so the operation is not so mysterious. I had  never
seen a hex-wide Q-bus
 backplane before this.

  There are some pictures of the system and the Q-Bus to 11/40 front  panel
 interface here:   
http://www.ricomputermuseum.org/Home/equipment/dec-pdp-1140
...