I have boards like that. Dataram comes to mind. My guess is it's parity
memory. You can probably figure out the switches for the register and
memory start region pretty quickly.
C
On 10/11/2020 6:09 PM, Dave Wade G4UGM via cctalk wrote:
Noel,
GOOGLE seems to have this one. It comes up with a Keyways page
http://www2.keyways.com/inv/38/15260928.html
which lists it as a "Monolithic" board which matches ...
... sorry no manual
Dave
-----Original Message-----
From: cctalk <cctalk-bounces at classiccmp.org> On Behalf Of Noel Chiappa via
cctalk
Sent: 11 October 2020 22:38
To: cctalk at
classiccmp.org
Cc: jnc at
mercury.lcs.mit.edu
Subject: Mystery QBUS memory card
Hi, I'm trying to ID this:
http://ana-3.lcs.mit.edu/~jnc/tech/pdp11/jpg/QBUSMystMem.jpg
mystery QBUS memory card. I think it's a 64KB card, so not very important,
but it's bugging me. The company logo (lower left corner) looks familiar,
but
I'm not good with off-brand logos; I'm
hoping someone will recognize it.
(It
we can locate a manual for it, so much the
better; I'm not up to playing
with it
to work out what the switches do!)
Noel