Ah was that it. I thought the 50 denoted the 2-cpu version,
the 00 the single cpu and that the 83xx was the faster version? of the 82xx
I always had trouble with this too, but here's the scoop -
VAX-8200 - 1x KA820 (T1001-00) CPU
VAX-8250 - 1x KA825 (T1001-YA) CPU
VAX-8300 - 2x KA820 CPU
VAX-8350 - 2x KA825 CPU
The model numbers corresponded to the CPU cards (e.g. KA820 -> 8200, KA825 ->
8250) ...
The KA825 (T1001-YA) was simply a faster version (6.25MHz vs 5MHz) of the same KA820.
Bob