21 Oct
2023
21 Oct
'23
4:42 p.m.
Interesting. Would a DD11-PK be usable as a normal Unibus/SPC backplane
for a 11/05? I do need one but I'm not sure if the PK has a true "Unibus
in" on say slot 2 that I could put a jumper into from the 11/05's backplane.
Anyone know?
C
On 10/21/2023 12:16 PM, Jon Elson via cctalk wrote:
On 10/20/23 11:46, Ethan Dicks via cctalk wrote:
On Fri, Oct 20, 2023 at 12:11 PM Jon Elson via
cctalk
<cctalk(a)classiccmp.org> wrote:
Right. I was just noting that I had this backplane available, if
anyone needed it.
Jon
On 10/20/23 03:59, Michael Thompson via cctalk
wrote:
DD11-PK is for
11/34 (top two slots for CPU). PDP-11/04 uses standard
DD11-DK (single-board CPU, doesn't need special slots).
The 11/20 is entirely different. It has three 4-slot backplanes for
CPU boards with "random" wiring and Unibus out on AB of final slot.
The RICM has an empty 11/20 chassis and the power
supply. All it
needs is
the processor backplanes. Is there any chance you have a set of
backplanes
available?
I have a DD11-PK backplane (Part No. 70-11523) with a few
bent pins. None are bent so badly they can't be
straightened. From 11/04 or 11/34. Free if you pay shipping.