DEC QBUS Backplanes

Nigel Johnson nw.johnson at
Fri Apr 17 20:48:45 CDT 2020

The actual sockets were always labelled with Digital's trademarks, but 
they sold them to OEMs to do what they like with them.  We OEM'd for the 
Components Group, at one time placed a million dollar order of stuff 
including boxes of those backplane sockets!



On 17/04/2020 21:40, Paul Anderson via cctalk wrote:
> I remember the VT72 had a non-standard backplane in it, but I don't
> remember the details.
> Paul
> On Fri, Apr 17, 2020 at 8:10 PM Bill Gunshannon via cctalk <
> cctalk at> wrote:
>> On 4/17/20 8:36 PM, Chris Zach via cctalk wrote:
>>> Hm. Plessy backplane?
>> No name on the phenolic board part but the QBUS sockets are labeled
>> "Digital Equipment Corporation".
>> bill

Nigel Johnson

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