One (1) S181 module with green substrate and a red plastic extraction handle attached by two rivets. The handle reads "DIGITAL EQUIPMENT CORPORATION MAYNARD, MASSACHUSETTS" in raised letters on the solder-side. The substrate on the solder-side reads "DC CARRY CHAIN R 181 A" along the left-edge. "FLIP CHIP" can be read through the substrate, between the rivets on the component-side. The module has one circular, black inspection stamp near the handle. There is a repeating pattern of "NP" on the substrate.
Date
1965 ca.
Manufacturer
Digital Equipment Corporation (DEC)
Place Manufactured
Maynard, Mass.
Identifying Numbers
Model number
S181
Printed in white on face of extraction handle
Other number
9 66
Printed at top-right corner of substrate, solder-side
