Miscellaneous Digital Equipment Corporation PDP-11 Information


Introduction

A substantial effort has been put into making the documentation for the PDP-11 provided by DEC (Digital Equipment Corportation) available online, for use by collectors, museums, etc, in keeping antique PDP-11's running.

A large proportion of the manuals and print sets produced by DEC over the years are now online, at sites such as BitSavers and Manx, as well as other repositories maintained by individual collectors, etc.

However, there are always things that are missing, and I have provided a few. This page provide a central index to the material which I have provided (although a lot of has now been replicated in other repositories).

For documents, their names are shown exactly as given on them; there is some variance (e.g. "11/04" versus "PDP11/23").


Manuals


Size
(KBytes)
Title Comments
672 KK11-A Cache Memory User's Guide (EK-KK11A-UG) PDP-11/34A cache
3932 DZV11 Asynchronous Multiplexer Technical Manual (EK-DZV11-TM)  
1188 KT11-B Option Description A 'Computer Special Systems' document
7498 PDP-11/24 Technical Manual (EK-11024-TM-003.pdf)  

Print sets


Size
(KBytes)
Title Comments
984 KY11-LB Programmer's Console Field Maintenance Print Set (MP00015) Not my original scan; I just extracted the relevant pages from the -11/34A print set, and cleaned off all the scribbling
1528 KDJ11-A Field Maintenance Print Set (MP-01890) 11/73 CPU board
3536 MSV11-P Field Maintenance Print Set (MP01239) Not my original scan; I just made it more legible, and a much smaller file
2829 KT11-B Engineering Drawings (February 1972) Carefully hand-corrected/clarified from originals, for maximum readability
3307 RK11-C-DB Double Buffer Disk Control Engineering Drawings (December 1972) A 'Computer Special Systems' document; see here for more about the double-buffered variant.
15088 NS23M Installation Guide National Semiconductor NS23M QBUS memory card (includes schematics)

ROM Dumps


Item Comments
M873-YA code Disassembled and commented ROM code
M9301-YA code Disassembled and commented ROM code
M9301-YB code Disassembled and partially commented ROM code
M9301-YF code Disassembled and partially commented ROM code
M9301-YH code Disassembled but mostly un-commented ROM code

Front Panel Scans/Images


Size
(KBytes)
Item Comments
  Drawing of basic front panel Basic outline of the console indicator panel for the 11/35, /40, /45, /50, /55 and /70; this is the later (upwardly compatible) version, with the longer bottom tabs and two extra screw holes
  Drawing of 11/40 front panel The above, with the hole locations for the 11/35 and /40 on/off switch added
3892 11/35 front panel (partial) Scanned at 300 dpi, includes a rule in the image. The entire panel won't quite fit in my A3 scanner, but this is almost complete, missing only very narrow parts on the edge; it does include all the markings. Use the outline mechanical drawing (above) for the overall complete outline and size.
  Drawing of 11/45 front panel The first item listed, with the hole locations for the 11/45, /50, and /55 on/off switch, and display selection knobs, added
3816 11/45 front panel (partial) Ditto comments above about the 11/35 panel.
This is the older one, with the small round light holes, not the larger, squarish holes in the later panels of this group.
2304 11/55 front panel (center section) Scanned at 300 dpi
768 11/55 front panel (left section) Scanned at 300 dpi
1092 11/55 front panel (right section) Scanned at 300 dpi
2544 11/55 front panel The three images above, glued together electronically; don't rely on it for measurements, though, the registration isn't perfect (rotationally)
  Drawing of 11/70 front panel The first item listed, with the hole locations for the 11/70 on/off switch, and display selection knobs, added
2532 11/70 front panel, original version (partial) Ditto comments above about the 11/45 panel.
This is the older one, in magenta and rose colours.
5276 11/70 front panel, later version (center section) This is the later version, with the dark blue/light blue switches; it reads 'decdatasytem 570' - I have not seen one of these reading "11/70", although I have seen one with no title at all; scanned at 300 dpi
1396 11/70 front panel, later version (left section) Scanned at 300 dpi
1616 11/70 front panel, later version (right section) Scanned at 300 dpi
5676 11/70 front panel, later version The three images above, glued together electronically; ditto comment about the corresponding image for the 11/55 front panel
4040 'Industrial' 11/70 front panel (partial) Ditto comments above about the original 11/70 panel.
This is the 'Industrial' panel, in blue and red.

Other Scans/Images


Size
(KBytes)
Item Comments
1732 H960 top logo panel "digital equipment of canada, ltd." Only the left hand part, but that should be all that's critical; scanned at 300 dpi
524 M7237 KJ11-A Stack Limit Register (component side) Scanned at 250 dpi
648 M7237 KJ11-A Stack Limit Register (solder side) Scanned at 250 dpi


See Also: 'Missing' Digital Equipment Corporation Field Maintenance Print Sets Online


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© Copyright 2015-17 by J. Noel Chiappa


Last updated: 11/May/2017