Artifact Details

Title

Vacuum tube type 2D21

Catalog Number

102729906

Type

Physical object

Date

1954 ca.

Manufacturer

International Business Machines (IBM)

Place Manufactured

U.S.

Identifying Numbers

Part number 2D21 Printed on each tube, near the top

Dimensions

overall: 2 1/8 in x 3/4 in x 3/4 in

Description

This record contains 7 vacuum tubes type 2D21, each with seven connector pins. "IBM" and "MADE IN U.S.A. are printed on each tube.

Category

Component/vacuum tube

Credit

Gift of Paul Pierce

Lot Number

X7021.2014