Ferranti thermionic valve, type EB91.
Details
- Category:
- Electronic Components
- Object Number:
- Y1996.10.829
- Materials:
- metal (unknown), glass and cardboard
- Measurements:
-
box: 29 mm x 84 mm x 29 mm, .05
- type:
- thermionic valve
- credit:
- Gift of Ferranti International Signal plc