Artifact Details

Title

Sense switch 1981A system building block

Catalog Number

102728229

Type

Physical object

Date

1963 ca.

Manufacturer

Digital Equipment Corporation (DEC)

Place Manufactured

Maynard, Mass.

Identifying Numbers

Model number 1981A Etched in solder toward the insertion end of the board
Other number 1981 Engraved on the metal frame at the extraction end
Serial number 0056022 Engraved on the side of the metal frame toward the extraction end

Dimensions

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

Description

The object consists of 16 transistors arranged in neat rows among numerous capacitors and resistors on the component side. Many of the diodes leads have loops where they go through the circuit board. There are two barely visible quality control stamps on the component side.

Category

Component/module