Transducer by S.G. Brown to enable a gramophone horn to be used as a radio loudspeaker

Transducer by S.G. Brown to enable a gramophone horn to be used as a radio loudspeaker, c.1924

Details

Category:
Sound Reproduction
Object Number:
1978-291
type:
loudspeakers
credit:
The Reverend J.W. Norcott.