Original Williams CPU board, Rev D. used in its Joust, Robotron, Sinistar and Stargate arcade games. This one does boot up and works, but we've seen it reset once and a while on our test bench.
It has had some ICs replaced in the past, but the work looks fairly clean as is the board. We are selling it as-is at this point.
See pictures for more details, board is sold as-is.
