On Sun, Jan 26, 2020 at 2:08 PM Noel Chiappa via cctalk <[email protected]> wrote: > So I've decided to try and build up a KE11-A Extended Arithmetic Element. I > have most of the boards (although I*m missing a M234 Register dual-width > board, if anyone has one).
I have one but no spare parts. > The main thing I'm missing at this point is a backplane. > > If not, if someone does have one, even if you want to hang onto it, I'd really > appreciate good photos of the pin side of the backplane, so I have a more > detailed idea (than just the prints) on how the wiring goes. It's on my list to start examining and refurbing my PDP-11/20. I will take pictures when I get things started, but if anyone else has one, feel free to jump in. It will be some time before I get to mine. > And speaking of the prints, although there are a scanned set online, they are > pretty low-res, and some parts (e.g. the wire list, which was typical line > printer output) are hard to read as a result. So a new scan would be really, > really appreciated. I will keep an eye out for my prints as I go through things. I have _some_ original prints from 1970 (with the characteristic cover page). I will watch for the KE11A in the stack in the hopes that it's not a copy of a copy of a copy. I have wanted to restore mine for a long time - in particular, I want to run the UNIX v1 kernel that's part of the PUPS collection. About the only major thing that I will have to emulate is the swap disk. I have an RK11-D and an RK11-C (if I can get that working). I've been starting the organization process for all of this but haven't begun moving hardware yet. Cheers, -ethan > Thanks (I hope)! > > Noel
