Page "Electrical engineering" Paragraph 14

During the development of radio, many scientists and inventors contributed to radio technology and electronics.

In his classic UHF experiments of 1888, Heinrich Hertz transmitted ( via a spark-gap transmitter ) and detected radio waves using electrical equipment.

In 1895, Nikola Tesla was able to detect signals from the transmissions of his New York lab at West Point ( a distance of 80. 4 km / 49. 95 miles ).

In 1897, Karl Ferdinand Braun introduced the cathode ray tube as part of an oscilloscope, a crucial enabling technology for electronic television.

John Fleming invented the first radio tube, the diode, in 1904.

Two years later, Robert von Lieben and Lee De Forest independently developed the amplifier tube, called the triode.