Marconiphone moving-coil loudspeaker

Marconiphone moving-coil loudspeaker

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Marconiphone moving-coil loudspeaker
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