I just picked up a PDP11 processor handbook. Listed on the front also the pdp11/04/24/34a/44/70. There is a picture of two of the shorter white system cabinets, one i guess is one of the front loading tape driver the other case has two "RL02" unit separated by "somthing" perhaps a cpu with no front panel lights. The book is copyrighted 1981. Has this book been scaned? is it already available on the internet? If not, I will make it available to someone who will scan it and return it to me..