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PDP-11/34? in Cirencester, Wiltshire UK

PG31

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Joined
May 31, 2011
Messages
509
Location
Sefton, Meresyside, England
I've been in conversation on Facebook group "DEC Computer Users" with someone giving away a PDP-11/34 in UK. He sent me some photos today but is in too bad a condition for me to want it. It looks to have a complete PCB set to me. With DL11, DL11-W, RX11 and RK11. So if anyone is interested and is on Facebook then you could join the group. If not I'm happy to be a go between.

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Never seen a BA11-K box in that (bad) shape.
I would take out the backplanes and boards. Check the power "bricks" and dump the box.
But I am not ik the UK :(
 
Wow, that is terrible condition. Must have been stored in a damp leaky basement or somewhere similar. Might be too far gone to restore.
 
I think Henk is right, the box is just terrible. It would be good to take a closer look and see what is salvageable. Cirencester is quite a way from me though, not sure I would make the journey specially given the condition of the machine.
 
I’d definitely take a long drive for it, but for me, there’s an ocean in between. The severe rust seems concentrated on the left side and some surface rust on the front. Hard to know for certain without seeing the entire unit
 
Doesn't appear to be the one that can take the floating point and/or cache, but still probably fine. As people said either dump the box or rebuild it.
 
Hard to say, without knowing the M numbers of the 2 CPU boards, whether FP and/or cache can be added.
As far as I know, if you have the 11/34A you --can-- add PF/cache, but if not available, you can use the adjacent slots next to the CPU for other "normal" boards, starting with the full console interface quad module and the serial console interface (too lazy to look up the M numbers of CPUs and console IFC).

But the box includes the RK11 backplane + the 4 boards, so definitely worth picking up. These boards are in the "middle", so protected by "their neighbors" at both sides :)
 
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