Artifact Details

Title

Vacuum tube type 7AD7

Catalog Number

102735578

Type

Physical object

Date

1959 ca.

Manufacturer

Sylvania

Place Manufactured

U. S.

Identifying Numbers

Model number 7AD7 Printed in silver ink on top of the tube.

Dimensions

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

Description

This is a power pentode in a glass envelope with an eight-pin loctal base. A 3 x 5 index card is scotched-taped around the tube, obscuring anything printed thereon. In addition to the tube type and manufacturer, "NR3127 - Box 1 - #13" is printed with red felt tip pen in red; there is also a description printed in pen indicating this object was used in Whirlwind,

Category

Component/vacuum tube