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Straight horn loudspeaker, 1921.

Straight horn loudspeaker, 1921.
4 0 c m
actual image size: 24cm x 32cm


This type of loudspeaker would have been used in the home, to amplify radio transmisions. Before modern moving-coil loudspeakers, most people listened to the radio on headphones. A speaker, if you had one, would probably have fixed coils driving an iron reed attached to a small diaphragm. Made by S G Brown.

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© Science Museum / Science & Society Picture Library

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