I have a PDP-11/05 with 16KB core in my home lab. Haven't powered it up in a decade since getting rid of my Teletype ASR 33 for space reasons. I need to cobble

I have a PDP-11/05 with 16KB core in my home lab. Haven't powered it up in a decade since getting rid of my Teletype ASR 33 for space reasons. I need to cobble up a 20mA current loop interface to talk to it. This PiDP-11 is much more energy-efficient, the /05 really heats up the room!