Osram thermionic diode valve
Osram thermionic diode valve made for the General Electric Company
U33 PC 4
Details
- Category:
- Radio Communication
- Object Number:
- Y7001.777
- Materials:
- glass, plastic (unidentified), metal (unknown) and cardboard
- Measurements:
-
overall: 135 mm x 52 mm x 52 mm,
- type:
- thermionic valve and diode
