That is a Xerox 820, which is the same schematically as a z80 big board.
The big board was a different form factor (the same size as an 8" floppy
drive) and was usually a kit.
--tom
At 10:03 PM 3/15/02 -0600, you wrote:
I've got what I was told is a BigBoard. Can
someone check
out the picture at:
http://www.dittman.net/z80.jpg
and see if you recognize it?
Thanks.
--
Eric Dittman
dittman(a)dittman.net
Check out the DEC Enthusiasts Club at
http://www.dittman.net/