3 Mar
2016
3 Mar
'16
1:27 a.m.
2016-03-03 9:36 GMT+01:00 Mattis Lind <mattislind at gmail.com>:
Just checked the list of 18 bits installations that Bob Supnik made
available:
https://dl.dropboxusercontent.com/u/96935524/Datormusuem/18bitServiceList19…
There is a PDP-9, s/n 209 delivered to Australia Iron & Steel.
It had a AF01B (A/D converter) s/n 195 and a AA05B (I am not sure how it
differs from AA01) s/n 101. It is also supposed have an extra memory
cabinet since it had two memory stacks.
There are also two items which I would guess is non standard options: "76
05404" and "76 05426".
Check the AF01 you got is matching the serial number.
It was delivered in 1969.
There are a few flexiprint cables dangling in the foreground. I think those
are the ones that are supposed to connect with the front panel. So someone
has probably taken the frontpanel. Maybe that is way it is not recognised
as a PDP-9.
/Mattis
Finally I removed the Foxboro paper tape reader. The tape holders each
side slide up to reveal the rack mounting
screws. Onto the ute it went.
There were some other racks of gear, but all custom idustrial control
equipment. One rack had a DEC A-D Converter
in it with some serious cables connected to some backplanes of the
smaller Flip Chip modules. I grabbed the A-D
and Flip Chips.
http://www.surfacezero.com/g503/data/4173/gear_recovery_16.jpg
http://www.surfacezero.com/g503/data/4173/gear_recovery_17.jpg
http://www.surfacezero.com/g503/data/4173/gear_recovery_18.jpg
http://www.surfacezero.com/g503/data/4173/gear_recovery_19.jpg
http://www.surfacezero.com/g503/data/4173/gear_recovery_20.jpg
What is in picture 18? There is something very familiar with it. To me it
looks like the backplane of a PDP-9. The core memory stack in the top.
Compare with the RICM PDP-9:
http://www.ricomputermuseum.org/Home/equipment/dec-pdp-9/PDP-9_Processor_Fr…
I would be very interesting to see more pictures of the cabinet in picture
18.
I also would guess that the the cabinet with the A/D converter (AF01A) in
the top also hold a D/A converter (AA01A). It looks very much similar to
the one we have with our PDP-9.
https://dl.dropboxusercontent.com/u/96935524/Datormusuem/Exhibhall-8l-8e-rk…
(the cabinet next to the RK07)
/Mattis
