A giant loudspeaker stood on the roof of a hangar at Mineola, L. I., last week, and radio and sound engineers trooped out to have a look, listen to its monstrous bray. Developed in the Bell Telephone Laboratories, the apparatus resembled a big searchlight. When it and 18 others like it are mounted soon atop a 100-ft. tower, their combined blast will be the loudest sound ever produced by man.
The amplifier assembly will serve Roosevelt Raceway, a pretzel-shaped automobile track on the site of Roosevelt Airport No. 1. From the glass-enclosed...
To continue reading:
or
Log-In
