20 May
2018
20 May
'18
10:05 a.m.
Had to look it up, 8110 for MOS memory, and 8120 for bipolar memory is
what field guyde list says.
I think the there was some change from special select parts and a move
to schottky 74S series around the time of the 45/50 days.
http://www.ibiblio.org/pub/academic/computer-science/history/pdp-11/hardwar…
but my memory could be wrong - 11 group did a bit of rebranding with
model numbers and parts change, 11/40 was faster than 11/35, but if
you changed a wire, they were the same.
bb
On Sun, May 20, 2018 at 8:49 AM, Noel Chiappa via cctalk
<cctalk at classiccmp.org> wrote:
So I notice that M8120 controller card for the MS11
seems to share its etch
with the earlier M8110 variant (the M8120 says "M8110" in the etch :-); so the
differences must be component/configuration/ECO. Does anyone happen to know
what the differences between the two are? Thanks!
Noel