DEC 11/24????...

At 07:41 4/6/98 -0800, you wrote: That makes sense -- this guy is nowhere near that size -- it is *not* a PDP-11/70 (rats). <snip>If the machine is - as I guess - a 11/24, the machine dates from the >early 80's. But the bus it uses goes a decade further back than this, >so there certainly may be older things hooked in. >If it's an 11/04, then it might be from the late 70's. >Can you at least look at some of the date codes on the chips? (Would >it be useful if I prepared a brief lesson on "how to read date codes"? >I have to admit that it's pretty obvious to me, and I often don't >understand how someone can look at a board and not just innately know >how old it is because of the date codes blatantly stamped on most >of the chips.) The date codes on the IC's claim that the processor board was built no earlier than mid-1987... <snip>>I don't recognize most of the part numbers below, I have to admit. >The numbers that are most useful are the numbers stamped on the module >handles, and are usually of the form Mnnn or Mnnnn, where "n" is a >decimal digit. >> (1): Obviously a CPU board -- AH13Z-06. Also claims DEC P/N 1216988. Has a >> 15MHz crystal and is 15.5x8" in size. It has edge connectors (as do all of >> the boards). >I think this is a PDP-11/24 CPU board. If the number on the handle >is "M7133", then my guess is right. It might also be a 11/04 CPU >board, in which case it'd be a "M7263". Tim -- I have looked for the stamped numbers as you mention and see absolutely nothing on the handles -- considering that I have never looked at DEC PDP boards before -- I am not sure what I am looking at. The 'handles' on this board are two metal handles each at the end of the board -- you pull up and the handle pries the board out of the connector -- I see no stamped numbers at all. I wonder if there are supposed to be plastic thingies with the stamped numbers on the end of the metal handles that someone removed -- there are none. Comments? ><snip>I wouldn't exactly describe what you have as a "working system"; without >a disk/tape subsystem, you'll be limited to console I/O and at most >one of the older paper-tape operating systems. I actually have, which I have not mentioned, a large DEC-TAPE(?) drive which weights a good 120lbs and is perhaps 3' square -- my friend claimed that everything worked well when Slumberger removed it from service(?). I do not have, however, any tapes. I would like, if possible, to positively identify this computer before I give it away to someone on the list that can provide a good home... All help is appreciated... >Tim. (shoppa(a)triumf.ca) Regards to all.. Jack (Friend to all things 'Symbolics') --------------------------------------------------------------------- Jack Harper Bank Systems 2000, Inc. 303-277-1892 Golden, Colorado USA "21st Century Financial Applications" Optical Cards for Bank, EBT, and Medical Applications Visit our Web Page: http://www.bs2000.com/talos (Last Update: 970902) ---------------------------------------------------------------------