In 1938, the director of the Signal Corps Laboratories at Fort Monmouth, New Jersey, Col. Roger B. Colton, transformed ...

Edwin Howard Armstrong (1890-1954), the inventor of the "Regeneration" and "Superheterodyne" circuits as well as "Frequency Modulation," or FM. A flamboyant man with a fondness for fast cars and a ...

This is the story of Lee de Forest, a clergyman’s flamboyant son, who invented the audion tube; Edwin Howard Armstrong, a brilliant, withdrawn inventor who pioneered FM technology; and David ...

It was superseded by MFM and RLL. FM radio was invented in the early 1930s by Edwin Howard Armstrong, who years earlier had made a fortune selling RCA his amplifier technology. When he asked RCA ...