SB11

Francesca C. Smith fsmith at ladylinux.com
Wed Jan 21 08:06:11 CST 2009


On Wednesday 21 January 2009 06:19:57 Pete Turnbull wrote:
> Not really -- it's a tabletop CPU/system box sold for OEM use -- in
> other words a standalone unit you'd build a small system, such as a
> process controller, into.  It has a 2 x 2 backplane, arranged serpentine
> style, so you could put up to four dual-height cards in it.  It has one
> gotcha -- no line-time clock.
>
> http://www.dunnington.u-net.com/public/PDP-11/QBus_chassis
>
> I don't think your monitor unit was ever meant for rack mounting,
> either.  Apart from having no obvious mounting points for rails, the
> power inlet and switch would be inside and facing the side of the rack
> if the CRT were facing out the front.  I expect it's a tabletop unit, or
> was mounted inside something else.  Which is not to say it might not
> have once sat on a shelf in a rack, of course.

Ahh well no Line time clock is a gotcha. :-) Would have been a little easier 
to Divine its true use if the complement of cards were still in it. 

Well then what use would this be to a hobbyist other than the obvious hollow 
it out and stick a PC MB in it and create some Sim pdp11 thing ??

-- 
Kindest Regards,

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