Marconiphone moving-coil loudspeaker
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Science Museum Group
© The Board of Trustees of the Science Museum
Marconiphone moving-coil loudspeaker, with built-in mains energizing unit, c. 1928
Details
- Category:
- Radio Communication
- Object Number:
- 1970-654
- type:
- loudspeaker
- credit:
- Ekco Instruments Limited
