PDP-11/44

I got this beauty from Geert Rolf, thanks Geert!!

What I learned about this machine while getting it running again..

• The 11/44 board and backplane layout
• List of boot PROMs

Cards and backplanes

• The DELUA ethernet controller (M7521)
• The DD11-DK and DD11-CK backplanes

Unibone tutorials and details

• Unibone inside the 11/44

Problems and fixes

• zmspc0 test failure

Operating systems

• rsx-11
• Trying simh with Ethernet

Running diagnostics

• Creating a tu58 (or console) serial cable
• Using tu58 emulation to run the xxdp tests from tape images
• Investigating and testing the H7140 PSU

First powerup with only 5 cards (M7094..M7098):

Useful tools:

• xxdpdir.pl: read DEC disk image files xxdpdir.pl --image=xxdp25.rl02 --directory to get a directory from that file

Boot PROM resources

• https://www.pdp-11.de/index.php/2018/06/09/dec-pdp-11-34-m9312-with-new-bootproms/
• https://ak6dn.github.io/PDP-11/M9312/ Boot PROM files (also for the M7098 Unibus Interface)
• http://www.bluefeathertech.com/technoid/promfiles.html But with the PROM types noted too