On Mon, Aug 22, 2016 at 8:16 AM, Noel Chiappa <j...@mercury.lcs.mit.edu> wrote: > > From: Ethan Dicks > > Second, many/most of the CPU modules are -YA variants, and the "PDP-11 > > Field Guide" mentions that they would be part of a KH11-A. > > I've been told that it's a revision to the CPU timings to reduce NPR latency, > although I have no details; I had previously looked online, and was not able > to locate anything about it.
Nor was I. > > a full set of boards for a KE11-A. I have been sniffing around for a > > KE11-B (single-board version), and now, I don't need to (as long as > > this one works or can be repaired). > > Doesn't it need a custom backplane too? Do you have that? I have no idea, but if it does, I have the 3 BA-11 boxes this machine came in, just not in the same room as the boards, so I don't have backplane/system unit part numbers yet. > > my goal all along has been to fire up enough hardware for Warren > > Toomey's reconstruction of ~1972 UNIX -ethan