I've got one of the original ComputerEyes digitizers. The black box model with a 16pin ribbon cable, 2 knobs, and a composite input. This one here:
It has a blown chip that I'm not able to identify positively. I believe it to be a 556 but want positive ID before I go playing around. Other parts might be bad too. But, one step at a time.
Are there any photos of the board or a schematic/manual available for this?