On Sun, May 21, 2017 at 6:11 PM, Glen Slick via cctalk <cctalk@classiccmp.org> wrote: >> KDJ11-D (M7554) aka PDP-11/53 "All you need to add is a hard drive >> controller." >> >> See: http://home.windstream.net/engdahl/kdj11.htm > > Yeah, a DECserver 500 or 550 version of an M7554 is usually the least > expensive version to find. Here are some asking $175.00 or make an > offer.
Glad I got one a while back... > I picked up a couple of the DECserver 550 version (1.5MB RAM instead > of 512KB) for closer to $50 each, but that was several years ago. Indeed. I'll have to check mine to see if I have an M7554-SC (512KB) or M7554-SE (1.5MB) There appear to be a large number of types of M7554 in the field guide - different handles, different board etches, different boot ROMs... > The 11/53 version without the S-handle bracket seem to be a bit less > common. I managed to also grab one of those on eBay a while ago, maybe > less than $100 at the time. Those were usually found in late-model MicroPDP-11s, and not as plentiful as some types of PDP-11, IME. I worked with one in Aug, 1988 that was running MUMPS (a customer wanted our company to bump up their storage - that was an adventure as neither of us doing the work had ever used MUMPS before, and it was all menu-driven and nothing like any other PDP-11 OS that we had encountered before). -ethan
