Artifact Details

Title

Vacuum tube type 7AK7

Catalog Number

102732754

Type

Physical object

Date

1938 ca.

Manufacturer

Sylvania

Place Manufactured

U. S.

Identifying Numbers

Model number 7AK7 Printed in silver ink on top of the glass envelope.
Other number AK2692 Written in silver ink near the bottom of the glass envelope.
Other number IORDC6 V3-1 Written vertically in gold ink on the glass envelope.

Dimensions

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

Description

This is a pentode in a glass envelope with an eight-pin loctal base. This is a spare tube for Delay Line Amplifier S/N 16.

Category

Component/vacuum tube

Credit

Gift of the Digital Equipment Corporation

Lot Number

X115.82