On Tue, Feb 23, 2016 at 7:28 PM, Michael Thompson < michael.99.thomp...@gmail.com> wrote:
> The PDP-11 at the RICM says "dec pdp 11" on the system configuration paper > label on the back, and "M11 15" and "4720" on the metal tag. Unfortunately > it has an OEM front panel. > > -- > Michael Thompson > are you sure its not H720 rather than 4720? H720 would be the type of power supply from an original 11. M11 15 would seem like the OEM 11/20 after they abandoned the 11/10 model. My hunch would be the date code is late 1970 early 1971. -- @ BillDeg: Web: vintagecomputer.net Twitter: @billdeg <https://twitter.com/billdeg> Youtube: @billdeg <https://www.youtube.com/user/billdeg> Unauthorized Bio <http://www.vintagecomputer.net/readme.cfm>