PDP-11/24 CPU later version

Paul Birkel pbirkel at gmail.com
Sat Feb 18 11:44:42 CST 2017

Thanks for scanning this!  No sign that Al has done-his-bit :-<.
In the meantime is it possible to get an unlocked copy that I can OCR so
that it's searchable?

Should I infer that you purchased that $399 load of DEC modules?
I debated, what with the J11 processor, but no FP-coprocessor and no

-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Noel
Sent: Tuesday, February 07, 2017 5:42 PM
To: cctalk at classiccmp.org
Cc: jnc at mercury.lcs.mit.edu
Subject: PDP-11/24 CPU later version

So I was recently provided (thanks!) with a copy of the later rev of the
PDP-11/24 Tech Manual (EK-11024-TM-003), which I have had scanned for a
now (waiting for a quite period on the list ;-), and is now available for
upload here:


(Bitsavers et al, please pick this up and distribute.)

So it has an Appendix D, which described the -YA later rev of the CPU card
(in which a bunch of gates were replaced with a couple of custom gate
Does anyone have one of these? I'd love to get a photo of one, if so.



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