This is the front of the ASR 33 Teletype call control unit. It is the power supply for the teletype. It is called a call control unit because the phone equipment needed to operate a teletype with a phone line is installed as part of this unit if that option is ordered. This teletype was intended for operation with a computer so does not have any of the phone equipment installed.
Feel free to contact me, David Gesswein email@example.com with any questions, comments on the web site, or if you have related equipment, documentation, software etc. you are willing to part with. I am interested in anything PDP-8 related, computers, peripherals used with them, DEC or third party, or documentation.
PDP-8 Home Page  PDP-8 Site Map  PDP-8 Site Search