Title
Vacuum tube unknown typeCatalog Number
102783095Type
Physical objectDescription
Object is a miniature vacuum tube with a standard 7-pin base. The type is unknown. It seems that "57-04" is a date code, 1957 April.Date
1957Manufacturer
General Electric Company (GE)Identifying Numbers
| Other number | 188-4 | On side |
| Other number | 57-04 | On side |