Title
Vacuum tube type 7AK7
Catalog Number
102732585
Type
Physical object
Description
This is a pentode vacuum tube with a loctal base. This is a spare tube for 306-307 Multiply Control Register S/N 1.
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 |
1-MS-V11-2 |
Written vertically in green ink on the glass envelope. |
| Other number |
AK10855 |
Stamped in green ink near the bottom of the glass envelope. |
Dimensions
overall: 4 1/8 in x 1 1/8 in x 1 1/8 in
Category
Component/vacuum tube
Credit
Gift of the Digital Equipment Corporation
