KA11 changes for the KT11-B
From Computer History Wiki
The KT11-B Paging Option for the PDP-11/20 involves some modifications to the KA11 CPU. Those changes are documented in a DEC print set, 7605961-0, "Central Processor for KT11-B".
Alas, there's only one known set of these prints for the KT11-B changes to the KA11 - and that set is missing a page: "PC Board Modifications", D-AP-7605961-0-10.
Luckily, there is probably just duplicate information elsewhere (including a hand-modified set of KA11 prints, showing the changes to suppport the KT11-B) to allow it to be reproduced.
Print set
The following prints are included in the "Central Processor for KT11-B" set:
| Drawing | Sheets | Title |
|---|---|---|
| Headers | ||
| D-CS-7605961-0-3 | 3 | State Control - M727 K2 |
| D-CS-7605961-0-4 | 3 | Priority - M824 K3 |
| D-CS-7605961-0-5 | 3 | Bus Interface & Instruction Register - M725 K9 |
| D-CS-7605961-0-6 | 3 | Instruction Register Decode - M726 K10 |
| D-CS-7605961-0-7 | 3 | Flag Control - M822 K12 |
| D-CS-7605961-0-8 | 3 | Bus & Console Control - M724 K13 |
