HP 12653A line printer interface
J. David Bryan
jdbryan at acm.org
Wed Jul 5 16:35:37 CDT 2017
Does anyone have an HP 12653A line printer interface?
It is used to connect an HP 21xx/1000 CPU to an HP 2767A line printer. I
am unable to find a manual for this card, but the HP "General Purpose
Register Diagnostic" manual suggests that it is a modified HP 12566B
Microcircuit interface. I'm trying to determine what modifications were
made, so that I can model it accurately in the SIMH/HP2100 simulator.
If anyone has this card and wouldn't mind sending me high-resolution photos
of the front and back, I'd be most grateful.
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