Al Kossow has scanned in many pdp-1 documents:
Al's site is http://www.bitsavers.org/pdf/dec/pdp1/ which is worth checking for newly scanned documents.
The documents here are copies from his site.
Be sure to read and agree to The License before downloading any of these documents.
M-1120 Checkerboard Progam for 1,024 and 4,096 Word Memories
M-1121 Memory Addressing Test Program
M-1124 Combined Reader and Punch Test
M-1125 Multiply Step and Divide Step Test Program
M-1130 Insruction Test Programs
M-1131 Sample Tape Control Program
MITpdp1TimesharingMemoMay62.pdf