1931 design 'enclosed pot' cobalt steel permanent magnet
- Made:
- 1931
1931 design 'enclosed pot' cobalt steel permanent magnet for moving coil loud speaker
Details
- Category:
- Radio Communication
- Object Number:
- 1932-8
- Measurements:
-
overall: 50 mm 120 mm,
- type:
- magnets
- credit:
- Darwins Ltd.
