A very sad PDP-8/S

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 <lbickley at bickleywest.com; cctalk at classiccmp.org> wrote: On Sat, 03 Nov 2018 15:13:16 +1100 Guy Dunphy via cctalk <cctalk at classiccmp.org> wrote: 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. 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... 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"