yes... the I/O for a tty is on a separate mounting outside the cpu I recall for some reason... I need to pull out or S and another classic 8 from storage. as I recall there is a spare cLassic 8 front panel... snd it can find a new home. The S I want to.put in museum display next to our classic in there and the spare one will display off site... it is in a blue Dec 8 rack... one in museum has plexiglass card surrounds. Ed#
Sent from AOL Mobile Mail On Friday, November 2, 2018 Lyle Bickley via cctalk <[email protected]; [email protected]> wrote: On Sat, 03 Nov 2018 15:13:16 +1100 Guy Dunphy via cctalk <[email protected]> wrote: > This is rather sad. > I've received a PDP-8/S. It turns out to be missing so much, that > it's probably beyond restoration. Anyone who can think of potential > ways to find the missing parts, please speak up. > > http://everist.org/pics/PDP-8S/ > > Missing: > > - Front panel PCB, > - Case top AND bottom, > - Power supply. > - Some flip-chip slots are empty. Not sure if supposed to be. I have a restored and running PDP-8/S. It looks to me that you're not missing modules - the open slots are for the I/O cables. The P/S is a standard DEC linear P/S and can be easily substituted until you come across the real thing. You need to get the schematics for the version of the PDP-8/S you have and check the modules in your system against the module chart. When you say the front panel PCB is missing - do you mean that there is not a large circuit board with incandescent lamps in the system? That would seem unusual to me - given that all the switches are on the front panel. > Also there's no sign of any I/O circuitry. There is NO I/O on a PDP-8/S. The I/O cables connected to any I/O that existed. Please get a PDP-8/S service manual and schematics... > A curse on slack people who remove stuff from a machine for servicing > or whatever, then never got around to putting it back. Resulting in > this kind of tragedy. I may not be as you think... Lyle -- 73 NM6Y Bickley Consulting West Inc. http://bickleywest.com "Black holes are where God is dividing by zero"
