6% tungsten steel telephone receiver magnet
6% tungsten steel telephone receiver magnet
- Object Number:
- 1962-62 Pt1
- type:
- magnets
Panel containing seven examples of P.O. telephone magnets
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© The Board of Trustees of the Science Museum
Panel containing seven examples of P.O. telephone receiver and ringer magnets in historical sequence
Details
- Category:
- Electricity and Magnetism
- Object Number:
- 1962-62
- type:
- telephones
- credit:
- Permanent Magnet Association
Parts
35% cobalt steel telephone receiver magnet
35% cobalt steel telephone receiver magnet
- Object Number:
- 1962-62 Pt2
- type:
- magnets
Alnico telephone receiver magnet
Alnico telephone receiver magnet
- Object Number:
- 1962-62 Pt3
- type:
- magnets
Alnico telephone receiver magnet, 1938.
Alnico telephone receiver magnet
- Object Number:
- 1962-62/3
- type:
- permanent magnets and telephones
Alcomax II telephone receiver magnet
Alcomax II telephone receiver magnet
- Object Number:
- 1962-62 Pt4
- type:
- magnets
Alcomax III telephone receiver magnet
Alcomax III telephone receiver magnet
- Object Number:
- 1962-62 Pt5
- type:
- magnets
3% cobalt steel telephone ringer magnet
3% cobalt steel telephone ringer magnet
- Object Number:
- 1962-62 Pt6
- type:
- magnets
Feroba telephone ringer magnet
Feroba telephone ringer magnet
- Object Number:
- 1962-62 Pt7
- type:
- magnet
