Artifact Details

Title

IBM 700 series vacuum tube module

Catalog Number

102730237

Type

Physical object

Date

1955 ca.

Manufacturer

International Business Machines Corporation (IBM)

Identifying Numbers

Other number 0038E Stamped in black ink on top of metal frame
Other number 330532 Stamped in black ink on top of metal frame

Dimensions

overall: 9 5/8 in x 1 1/8 in x 7 1/2 in

Description

The object is an IBM 700 series vacuum tube module. These modules were used in 701, 702, 704, 705, and 709 computers. The module consists of a steel front plate with miniature tube sockets. There is a plastic connector located about 5 inches behind the front plate. A plastic frame between the front plate and the connector supports 4 tiers of terminal strips. The connector has a locking cam on a shaft which protrudes through the front plate. There are2 empty socket holes. Below these holes is a heat sink with a power transistor connected to a small batch of discrete components probably comprising a voltage regulator.

Category

Component/module

Credit

Gift of Paul Pierce

Lot Number

X7021.2014