For all without a good private library of original manuals the bitsavers.org document archive of historical DEC manuals comes to the rescue. Another good source of original manuals was the former UQ Museum of IT archived on
2009-09-14
, they are marked with a (UQ).

But be aware that all manuals are under the copyright of DEC, now held by HP.

General Handbooks

PDP-11/70 Processor (KB11-C and FP11-C)

PDP-11/74 Processor

PDP-11/45 Processor (KB11-A, KT11-C, and FP11-B)

The 11/45 is essentially a 11/70 without cache, massbus and 22 bit addressing, but otherwise very similar.

J11 Processor

The J11 is an ASIC implementation of a 11/70 with a small number of added and a some removed features.

Peripherals - System Devices

Peripherals - Character Devices

Peripherals - Disk Devices

Peripherals - Tape Devices