BTW.  Just last night before I went to bed, I booted for the first time my PiDP-11/70. I have one of the first alpha units since I’ve been coaching Oscar with the project a small amount.  I left it running a some tests last night and am off to USENIX ATC today, so I have not even tried to boot Unix on it yet.   One of the cool things about this project, I was able to arrange for the designer of the original 11/70 front panel to be consulted (Jim Bleck) on the molds to Oscar who was able to have the molds and the switches made in Europe.   Anyway, the PiDP-8 is cool and looks the same as the original 8/I,  but the panel is framed/finished in wood.  For the 11, the panel is the real thing - DEC white (hopefully will not fade using modern plastics).    FYI Oscar is considering doing the -10 next but given the amount of work from the 8 and the 11 it’s more than a hobby.