K. Ferdinand Braun
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Karl Ferdinand Braun was a German applied physicist who shared the 1909 Nobel Prize in Physics with Guglielmo Marconi for their contributions to the development of radio. With his two circuit system,
Ferdinand Braun
The house in Fulda, Germany, where Braun was born
An early resonant transformer invented by Braun used in the coherer radio receivers in wireless telegraphy radio systems made by the Telefunken company in 1903
Braun's two circuits to send and receive
Telefunken
Videos
Telefunken was a German radio and television producer, founded in Berlin in 1903 as a joint venture between Siemens & Halske and the Allgemeine Elektrizitäts-Gesellschaft. Prior to World War I, the co
K. Ferdinand Braun
…and the first semiconductor diode in 1874, which co-started the development of electronics and electronic engineering. Braun was a co-founder of Telefunken, one of the pioneering communications and television companies. He has been called the "father of television" (shared with inventors like Paul Nipkow…
Telefunken REN 904. A vacuum tube from 1930, used in early German radios.
Telefunken Partner 200, radio receiver model produced 1976-1978 in West Germany.
A Telefunken RC 881 cassette, CD player, and radio
Telefunken alarm clock from c. 1995 made by Thomson SA, designed by Philippe Starck