Early PDP-11 memory question

Ashley Carder wacarder at usit.net
Thu Oct 7 09:14:26 CDT 2004


I have a question for the PDP-11 Unibus experts here.  
I recently obtained a PDP 11/35 that had been dismantled
some years ago.  As part of this, there were some older 
style core memory board sets.  These were the 8k H214 
and H215 core boards and their corresponding G110 and 
G231 boards.  The backplane in the CPU box next to 
the CPU backplane is an MF11-LP.  There are three 
other MM11-UP backplanes that supposedly came out of 
a big BA11 expansion box.  I also have the original 
large field print sets for the MM11-L and MM11-S 
memory, which both seem to go along with the 
H214/H215/G110/G231 board sets.

Question:  

Does anyone know if the older 8k H214/H215/G110/G231 
memory board sets will work in the backplanes that 
I have? The previous owner says that this memory went 
with the backplanes that I have.  I have acquired some 
16k H217c, G214, and G235 memory board sets, along 
with the M8293 and M7259 boards, so I can get more core 
in the same space, but I would like to use the 8k core 
too, if it can be used with the backplanes I have.

Thanks,
Ashley


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