Metal-diaphragm loudspeaker

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Metal-diaphragm loudspeaker, permanent magnet, unit only, c
Science Museum Group
The Board of Trustees of the Science Museum

Metal-diaphragm loudspeaker, permanent magnet, unit only, c. 1935

Details

Category:: Radio Communication

Object Number:: 1987-676

type:: loudspeaker

credit:: Midgley, J.D.

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Metal-diaphragm loudspeaker

Details

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