Title
Vacuum tube type 4EJ7Catalog Number
102731155Type
Physical objectDescription
This is a vacuum tube, type 4EJ7, manufactured by Sylvania.Manufacturer
SylvaniaPlace Manufactured
U.S.Identifying Numbers
Model number | 4EJ7 | Stamped in middle of tube in green |
Other number | 952 | Stamped in middle of tube in gray |