Electromagnetic loudspeaker
Made of solid mahogany with cut out ornament and carved ornamental edge. Behind the ornament is a lattice of vertically stretched wires. The back of the speaker cone is covered with pieces of bamboo, and a metal wire spirals from the centre to the periphery of the cone. Behind the cone, a folded cardboard strip with rectangular slots is attached to the outer edge. All these measures provide a significant reduction of resonance and a good bass reproduction.
Made in: 1927
Purchased in: 2009
Sold in: 2022
Serial number: 1658
Dimensions: 35.4 x 35.4 x 16 cm; diameter of speaker 31 cm
DC resistance: 2000 Ohms

What was broadcast in 1927?


Listen to "Half a Moon" by the orchestra of Hal Swain sung by Hal Swain, recorded 20 juni 1927

The inside of the loudspeaker
Advertisements for the Celestion C12 (1927, left)  and the models C10, C12 and C14 (1928)

This page was last edited on 25.12.2022