Title
Vacuum tube type SR1407Catalog Number
102731255Type
Physical objectDescription
The record contains two vacuum tubes type SR1407. Each tube has an eight pin connector.Date
1925 ca.Manufacturer
SylvaniaPlace Manufactured
U.S.Identifying Numbers
Model number | SR1407 | Printed at the top of the tube |
Other number | 226 | Printed in green beside the manufacturer |