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| Lee de Forest |
➦In 1906...Lee de Forest, who coined the term "radio", patented Audion tube.
De Forest was interested in wireless telegraphy and invented the Audion in 1906. He then developed an improved wireless telegraph receiver.
On 25 October 1906, de Forest filed a patent for diode vacuum tube detector, a two-electrode device for detecting electromagnetic waves, a variant of the Fleming valve invented two years earlier.
One year later, he filed a patent for a three-electrode device that was a much more sensitive detector of electromagnetic waves. It was granted US Patent 879,532 in February 1908. The device was also called the de Forest valve, and since 1919 has been known as the triode.
De Forest's innovation was the insertion of a third electrode, the grid, between the cathode (filament) and the anode (plate) of the previously invented diode.
The resulting triode or three-electrode vacuum tube could be used as an amplifier of electrical signals, notably for radio reception. The Audion was the fastest electronic switching element of the time, and was later used in early digital electronics (such as computers). The triode was vital in the development of transcontinental telephone communications, radio, and radar until the 1948 invention of the transistor.
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| de Forest w/Audion tube |
In 1904, a De Forest transmitter and receiver were set up aboard the steamboat Haimun operated on behalf of The Times, the first of its kind. On July 18, 1907, De Forest broadcast the first ship-to-shore message from the steam yacht Thelma. The communication provided quick, accurate race results of the Annual Inter-Lakes Yachting Association Regatta. The message was received by his assistant, Frank E. Butler of Monroeville, Ohio, in the Pavilion at Fox's Dock located on South Bass Island on Lake Erie. DeForest disliked the term "wireless" and chose a new moniker, "radio."
De Forest is credited with the birth of public radio broadcasting when on January 12, 1910, he conducted experimental broadcast of part of the live performance of Tosca and, the next day, a performance with the participation of Italian tenor Enrico Caruso from the stage of Metropolitan Opera House in New York City.
➦In 1913...Alexander Scourby was born (Died at age 71 – February 22, 1985). He was a film, television, and voice actor known for his deep and resonant voice. He is best known for his film role as the ruthless mob boss Mike Lagana in Fritz Lang's The Big Heat (1953), and is also particularly well-remembered in the English-speaking world for his landmark recordings of the entire King James Version audio Bible, which have been released in numerous editions. He later recorded the entire Revised Standard Version of the Bible. Scourby recorded 422 audiobooks for the blind which he considered his most important work.
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| Jack Gale |
➦In 1925...Legendary radio broadcaster Jack Gale was born (Died - January 24, 2018) . During his remarkable career he has been a radio performer, programmer, owner, voice-over talent, music publisher, manager and record producer spans more than 50 years.