Which DEC machine made use of th pre Flip-Chip board?
mattislind at gmail.com
Fri Dec 21 06:58:30 CST 2018
Den fre 21 dec. 2018 kl 12:03 skrev Rod Smallwood via cctalk <
cctalk at classiccmp.org>:
> It could be a prototype that never made it to production, internal
> automated test gear or a bespoke job.
Do you know or just guessing? Why would it be some kind of test gear with a
AR, MQ, and MB designation?
I searched a bit more and the PDP-6 has exactly AR, MQ and MB registers. My
guess it comes from a PDP-6 since it was not used in the PDP-1, PDP-4 and
PDP-5 from looking in the maintenance manuals.. Then I found this manual:
Which confirms that is from a PDP-6. Page 3-13. It also makes sense since
one of the other boards from the same seller has a tag on it which indicate
> On 21/12/2018 10:49, Mattis Lind via cctalk wrote:
> > There is an auction for some kind of early DEC module. It appears to be a
> > bit slice of MB, AR and MQ. There is also a signature by Gordon Bell on
> > board.
> > But I cannot figure out which early machine it comes from.
> > The same seller has several other pre Flip-Chip modules like 4706
> > Receiver. If I read correctly the transistors are dated 1963-1964.
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