“Filming the Latest in Loudspeakers,” Moncton Daily Times. March 11, 1933. Page 5. ---- Our picture shows the filming of the new "searchlight" 24-inch moving coil loudspeaker, one of the largest ever constructed, from the roof of the Marconiphone Building in London. It is possible to hear this speaker five miles away. In the lower left-hand corner of the picture can be seen some of the old directional loudspeakers.









