25 Mar
2022
25 Mar
'22
6:21 a.m.
From: Steven Malikoff
I have finally got around to scanning the print set
for the DEC ME11-L
memory expansion unit
Ah, thanks for that. The prints for the boards are available, in the
PDP-11/05 Engineering Drawings (on pp. 115-137), but the MF11-L backplane was
previously missing. (The -11/05 generally mounts MM11-L sets in the main CPU
backplane, so the MF11-L backplane is not included in the -11/05 prints.) It
is the non-parity MF11-L backplane (DEC part number 54-09959), not the parity
one (part number 54-10331), though. (My theory is that the non-parity version
can be upgraded to parity with an etch cut, and some added wires, FWIW.)
Noel