Frequency Meter BC-221-M
- Made:
- 1944
Frequency Meter BC-221-M.[A similar example existed to this which had a special type of valve unique to this type of electronic test equipment.]
Details
- Category:
- Farnborough
- Object Number:
- 1993-2899
- Materials:
- aluminium alloy, steel, plastic, wood and electronic components
- type:
- frequency meter