Title
Vacuum tube type 7AK7
Catalog Number
102732761
Type
Physical object
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.
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 |
AK3316 |
Written in green ink near the bottom of the glass envelope. |
Other number |
IORDC3A V3-1 |
Written vertically 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