Marconi Osram thermionic diode valve
- maker:
- Marconiphone Company Limited
Marconiphone thermionic diode valve with cardboard box.
U35 GH 2
Details
- Category:
- Radio Communication
- Object Number:
- Y7001.684
- Materials:
- plastic (unidentified), glass, metal (unknown) and cardboard
- Measurements:
-
overall: 165 mm x 71 mm x 71 mm,
- type:
- thermionic valve and diode
