Re: Schematic for PA68-F (High speed paper taper reader/punch for PDP-8)

[Vincent Slyngstad]

From: Marc Howard: Saturday, February 20, 2016 5:29 PM
I'm looking for the schematic for a PA68-F.  It's a two high collection of
single width M series modules that implements the paper tape high speed
reader/punch control for positive bus machines.

Does anyone out there know where I can download this document?

I believe what you are looking for begins on page 53/125 of this  document:
bitsavers.org/pdf/dec/pdp8/typeset8/DEC-08-HMMPA-A_D_typeset8_PosLogicEngrDrws_Apr73.pdf

   Vince