Three moving - iron loudspeaker movements and a spare cone-mounting device Three moving-iron loudspeaker movements
B.T.H. "Rice Kellogg" 12-inch energized moving-coil loudspeaker, with integral rectifier unit, c. 1929 BTH 'Rice Kellogg' loudspeaker, c 1929. 1929
Loudspeaker pressure drive units (two) (Serial Nos. 17933 & 29351) made by Western Electric, type 555W, designed by Wente, patented 1926 (Bell Telephone Laboratories), impedance 10 ohms at 400 Hz, used in sound-film units, 1927. (Patent Nos. 263411, 266395, 275567, 275571, 297938) Loudspeaker pressure drive units (two) (Serial Nos. 17933 & 29351) made by Western Electric 1927
Two Wharfedale Sand-Filled Corner Loudspeaker Enclosures with 15 inch, 8 inch and 3 inch drivers, c. 1955 Two Wharfedale Sand-Filled Corner Loudspeaker Enclosures, c. 1955 1950-1955
Transducer by S.G. Brown to enable a gramophone horn to be used as a radio loudspeaker, c.1924 Transducer by S.G. Brown to enable a gramophone horn to be used as a radio loudspeaker
Two Paul Voigt Internal Suspension Loudspeakers in corner cabinets built by Tom Joyce of Ramsgate to Voigt's design, c. 1930, with an additional spare driver magnet assembly and a framed testimonial addressed to Tom Joyce from Elsie Carlisle, the musical comedy actress Two Paul Voigt Internal Suspension Loudspeakers built by Tom Joyce of Ramsgate, c.1930 1930
Tannoy loudspeaker, type LSU/HF/3L7G/8L, serial no. 141613, by Tannoy Products, London, c. 1970 Tannoy loudspeaker, c 1970. 1970