Small DEC cardcage with backplane

Jon Elson elson at
Fri Mar 6 20:53:10 CST 2015

On 03/06/2015 11:30 AM, Pontus Pihlgren wrote:
> On Fri, Mar 06, 2015 at 10:28:57AM -0600, Jon Elson wrote:
>> On 03/05/2015 05:00 PM, Sander Reiche wrote:
>>> Hi all,
>>> I'm currently searching around for a small cardcage+backplane, if I'm not
>>> mistaken DEC part numbers H9281-BA or H9281-BB for a bigger one. The -BA
>>> (4x dual heights) has my preference as I'm looking to build a very nice,
>>> cute and not that power hungry PDP-11.
>> Unibus or Q-bus?  I have some Q-bus backplanes that came from the
>> WELL.
>> Picked them up at some surplus place in the bay area, I think
>> probably Mike
>> Quinn's.
>> The backplanes don't have a manufacturer's label.  They may have
>> been custom
>> made by the WELL, I don't know.  I also don't know if they are Q-18
>> or Q-22.
>> They have a card cage, cooling fan and Todd power supply.  I have
>> two of them.
>> Jon
> What size?
9 slots x 4 connectors wide.  Standard Q-bus.


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