Artifact Details

Title

4 inputs D.C. sense amplifier 4552D system building block

Catalog Number

102629807

Type

Physical object

Date

1965 ca.

Manufacturer

Digital Equipment Corporation (DEC)

Identifying Numbers

Model number 4225 D Printed on the solder side at the insertion end of the board
Other number 4552 Stamped into the side of the aluminum frame

Dimensions

overall: 1/2 in x 4 1/2 in x 10 1/4 in

Description

The object has a green board surrounded by an aluminum frame and a blue plastic connector. One side of the board is covered in components, including resistors, transistors, diodes, capacitors, and two transformers. There is one inspection stamp toward the extraction end. There are also three inputs screwed to the frame at the extraction end. The solder side has a printed circuit with a grid lettered A-Z.

Category

Component/module