< What the Cosmac board? Let's see, It's 8 1/4" high x 9" deep. It has a <edge connector with about 88 contacts with what looks like .156" spacing. <There are four 1/2 AA size batteries near the top. Probably Nicads. They'r <growing white fuzz. The CPU is near the edge connector and is a RCA CDP <1802CE. It has the number 936 below the CDP number. Below it are three ZIF <sockets, two of them have 2516 EPROMs in them. To the left of the CPU are <two AMI 8039 22 pin ICs. All the other ICs are SSI. On the bottom edge it <says "TRANSYT CORP. CPU T-3020". The end opposite the edge connector has a < Any idea what it's out of? It is an 1802 CPU. the 936 is the 36th week of '79 most likely. Nope, not any of the 1802 SBC I know of and the connector was not typical of hobbiest class machines. My guess is a custom app. Allison