Mystery QBUS memory card

Chris Zach cz at
Sun Oct 11 19:04:02 CDT 2020

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.


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
> which lists it as a "Monolithic" board which matches ...
> ... sorry no manual
> Dave
>> -----Original Message-----
>> From: cctalk <cctalk-bounces at> On Behalf Of Noel Chiappa via
>> cctalk
>> Sent: 11 October 2020 22:38
>> To: cctalk at
>> Cc: jnc at
>> Subject: Mystery QBUS memory card
>> Hi, I'm trying to ID this:
>> 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

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