From an early age, Edwin H. Armstrong is intrigued with wireless technology and decides to become an inventor. In 1912, as a senior in college, he makes a major breakthrough in wireless technology. With determination Armstrong figures out how the three-element Audion vacuum tube can significantly improve the amplification of radio signals, and transmit them as well! His first major invention, called the regenerative circuit, makes radio broadcasting practical in the Roaring 20s.
Edwin H. Armstrong, Radio Pioneer – The Early Years and Regeneration
Radio Inquiry Unit