The board have various active and passive components on one side. Surrounding the board is an aluminum frame and a blue plastic 22 pin male connector. In one corner of the frame there is a bolt holding three brass wires.
Date
1965 ca.
Manufacturer
Digital Equipment Corporation (DEC)
Place Manufactured
Maynard, Mass.
Identifying Numbers
Model number
4519 C
Printed on the solder side of the board near the insertion end