Just found 2 of these rack mount CPUs using Western Digital CPU
Box is labled VIKING
Circuit cards (approx 8"by 10") include 3 Western Digital cards (CPU, FDC
and 4S+PIO card) CPU uses 4 40 pin chips (Like P machine), And 4 Viking
cards (memory controller, 2X Battery backed static RAM, and some AV
control stuff) 1 box has 2 5" floppy drives other box has 2 5" drives plus
1 narrow 8" drive
Was used for stage lighting, approx 1980 vintage
Any clues?
Peter Wallace