M. Doolittle formed the Doolittle Radio Corporation and applied
for a license for radio station WPAJ in New Haven, his company
manufactured various types of radio equipment in the early 1920s.
was a loudspeaker that could be attached to a radio receiver. It
was later altered and advertised as the Audimax
Click for more
on WDRC founder Franklin M. Doolittle.
closeup of the metal plate attached
to a Doolittle Amplifone