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Artifact Details

Title

Read Write Hold and Deslect 4520 D system building block

Catalog Number

102716757

Type

Physical object

Description

One one side the board is half covered in various components. "READ WRITE HOLD AND DESELECT 4520 D" is printed on the solder side at the insertion end above the grid lettered A-Z.

Date

1965 ca.

Manufacturer

Digital Equipment Corporation (DEC)

Place Manufactured

Maynard, Mass.

Identifying Numbers

Model number	4520 D	Printed on the solder side near the insertion end (the 4 is missing)
Part number	4520	Stamped into the face of the aluminum frame

Dimensions

overall: 1/2 in x 4 1/2 in x 7 in