Mystery QBUS memory card

[Chris Zach]

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
> 
>