I have a "PDP-11" that is actually a box (BA-23) that used to contain a MicroVAX I. I replaced the MVI boards with the following modules: M8190 KDJ11-B M7551-CF 4MB memory M7504 ethernet adapter M7555 RQDX3 hard/floppy controller M8043 DLV11-J 4 line serial It also contains the following drives: RX50 two 5.25" floppy drives RD54 159MB hard drive It seems to work. I was able to get RT-11 installed on the hard drive and the system boots to a prompt. I haven't played with it much since then though. I also have a bunch of other Q-Bus modules including a KDF11 CPU and some other memory and I/O boards as well as a few spare drives. Is anyone interested in coming to pick this stuff up?