The object consists of neatly arranged components on a green board, including four transistors. There is a blue plastic connector and an aluminum frame around the board. There are two inspection stamps on the component side. "NP" appears five times in red and appears to be molded into the fiberglass board.
Date
1965 ca.
Manufacturer
Digital Equipment Corporation (DEC)
Place Manufactured
Maynard, Mass.
Identifying Numbers
Model number
4125
Engaraved on the face of the frame
Other number
4125B
Etched in solder at the connector end of the solder side
Serial number
0241009
Engraved on the edge of the frame toward the insertion end