1931 design: 'four claw' cobalt steel permanent magnet
- Made:
- 1931
1931 design: 'four claw' cobalt steel permanent magnet, for moving coil loud speaker.
Details
- Category:
- Radio Communication
- Object Number:
- 1932-7
- Measurements:
-
overall: 60 mm x 130 mm x 130 mm,
- type:
- magnets
- credit:
- Darwins Ltd.
