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Current document root: Journal of the Society of Motion Picture Engineers ( Volume: 43, Issue: 3, September 1944)

The Duplex Loudspeaker

SMPTE • Journal Article • [Active]

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  • 1. Beers G. L. Belar H. : “Frequency Modulation in Loudspeakers,” J. Soc. Mot. Pict. Eng , XL (Apr., 1943 ), p. 207 .EXTERNAL