Title
Vacuum tube type 7AK7
Catalog Number
102735187
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. |
| Other number |
AK2318 |
Written in silver ink near the bottom of the glass envelope. |
| Other number |
COR19 V6 |
Vertically written in silver ink on 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
