[Eliot Ness]

We in Russia started using PDP-11 when you guys were almost dome with them and even VAXes were on their way out.
So I had my fun with them, repairing (yes, troubleshooting down to a component - no luxury of swapping and tossing boards; sometimes even tracing the microcode and replacing ROM) for which I had to write short assembly programs or even in codes directly right from the key switch panel.

012737
100
177560

Means "set the interrupt bit 6 in the Console Display's Keyboard Command Register".

013737
177562
177566

means "display on the console's screen what you've just typed on the keyboard".

Fun

Most of our problems were board seating, but I did spend a few hours on my back tracing signals on the backplane to fix flaky wire-wrap connections.  I used to enter code on the 11/05's but that has long since been erased from my memory banks

Although I do vividly recall replacing CDC hard drives that weighed 80+ pounds and were only 80 - 160MB!  I could still probably format and bad block one of those from memory....

Just so this doesn't drift too far off topic; good job on the Zenith.... the FM sure added a lot of caps and wiring to what is usually a very roomy chassis.  Are you going to get the shielded wire from eBay?