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Title: BTH 'Rice Kellogg' loudspeaker, c 1929. [Go to resource]
Description: B.T.H. "Rice Kellogg" 12-inch energized moving-coil loudspeaker, with integral rectifier unit, c. 1929 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: loudspeakers
rectifier unitsTemporal: 1929 Source: Science Museum Identifier: http://collectionsonline.nmsi.ac.uk/grab... Go to resource More Like this...
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