March 20th, 2017, 06:07 PM
Yep, the reproduction 560Z board is probably the cheapest way to have something to do with an IM6100! Thanks for rescuing them from the trash -- they're not unobtanium but they are far from common.
Originally Posted by firstname.lastname@example.org
The good thing about the 560Z design is the I/O and memory management is all microcoded on the 6502 host system. You can make it do whatever you wish -- microcode it for standard PDP-8/e I/O, emulate the 6120, or do your own thing!
The 12-bit RAM board I've been designing is nearly done, so that will make for a cheap/easy RAM solution on either side of the bus, much nicer than trying to find OSI 420 boards and enough good 2102 SRAMs to get going. We're not quite at the "you can order a full OSI worth of new-made boards," but that is the eventual goal.