Artifact Details

Title

Vacuum tube type 7AK7

Catalog Number

102735192

Type

Physical object

Description

This is a pentode vacuum tube with a loctal base. Pin 5 is missing by design. This is a spare tube for Bus Driver-Arithmetic Rack S/N 4.

Date

1938 ca.

Identifying Numbers

Model number 7AK7 Printed in brown ink on top of the glass envelope.

Dimensions

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

Category

Component/vacuum tube

Credit

Gift of the Digital Equipment Corporation

Lot Number

X115.82