Artifact Details

Title

Vacuum tube module

Catalog Number

102673132

Type

Physical object

Date

1955 ca.

Manufacturer

International Business Machines Corporation (IBM)

Identifying Numbers

Other number 020 Rubber stamped on vacuum tube chassis
Other number 519415 Rubber stamped on vacuum tube chassis
Other number R19 Written in pencil on vacuum tube chassis

Dimensions

overall: 1 in x 9 1/2 in x 7 1/2 in

Description

Vacuum tube module consists of eight red circuit boards attached to a chassis with eight vacuum tube positions on the front. A metal rod extends through the left side. The object is similar to modules in IBM 704 and 709 computers. Four vacuum tube positions are not wired. There is a "B" handwritten on the chassis between two tube positions.

Category

Component/circuit board / module

Credit

Gift of Greydon C. Freeman

Lot Number

X3755.2007