This module consists of integrated circuits, resistors, capacitors, doides and LED. There are circuits on both sides. There are several inspection stamps on side 1.
Manufacturer
Digital Equipment Corporation (DEC)
Identifying Numbers
Other number
120 A
Stamped in plastic holder on side 2.
Other number
48914
Printed in black near handle on side 1.
Other number
5010504B
Written in solder on side 2 on left edge.
Other number
M7297
Stamped in white on plastic handle. Printed in solder on side 2.