Any difference between VAX Q-bus and PDP-11 Q-bus cards?

emanuel stiebler emu at
Thu Dec 7 00:43:43 CST 2017

On 2017-12-07 03:55, Jon Elson via cctech wrote:
> On 12/03/2017 10:28 AM, Aaron Jackson via cctech wrote:
>> I'm looking after a VAX 4000 for a friend, which has a SCSI Q-bus card
>> (M5976). If the card did not have the large metal face, would it work in
>> a Q-bus PDP-11? We are not going to potentially ruin a card by trying
>> this, but I am interested to know if this is the case.
> As long as the PDP supports the 22-bit Q-bus, it should work perfectly.  

I don't now that any OS supports the M5976 on a pdp-11 ...

Electrically, you should be OK ...

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