While doing some more searching on the Minuteman I (Autonetics D-17B)
computer, I found this publication:
http://books.google.com/books/about/Input_Output_Interfaces_for_the_D17B
_Bus.html?id=M2r_NwAACAAJ]
It'd be interesting to find this publication, though some quick
searching around doesn't seem to be able to find any copies available
for purchase anywhere.
Rick Bensene