Artifact Details

Description

One (1) R220 module with bright green board 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 board on the solder side reads "3 BIT SHIFT REG. R220L" along the left-edge. "FLIP CHIP" is printed in solder on the substrate, between the rivets on the component side. "MAY 14 1974" is stamped in black over "FLIP CHIP." There are three black inspection stamps on the component side; one square, one circle, and one triangle. A repeating pattern of "W" in printed in red on the board.

Date

1964 ca.

Manufacturer

Digital Equipment Corporation (DEC)

Place Manufactured

Maynard, Mass., U.S.

Identifying Numbers

Model number	R220	Printed in white on face of handle
Other number	425	Incised on solder side of handle
Other number	R220L	Printed in solder on solder side of board

Dimensions

overall: 1/2 in x 2 1/2 in x 5 1/2 in

Category

Component/module