Coincidentally, this weekend a friend found a couple of Monrobot logic
modules at a hamfest - but all the components had been stripped out,
leaving only a skeleton. Nice tags, however. They look a bit like
single tube IBM modules.
And coincidentally to that, the same hamfest yielded a pair of IBM
marked solid state replacement modules for 6AL5 tubes. The part number
is in the 440000s, so they are likely from the mid 1960s.
--
Will