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Pre-1935
Timeline
This is a year-by-year timeline of the key dates and events relating to
television 1800's
1872
Joseph May discovers that
selenium's conductivity is enhanced by light.
1878
Mr. Senleq proposes FAX
transmission using a selenium scanner and telegraphy.
1880
First articles appear in Scientific
American about the possibility of television.
1884
Paul Nipkow patents the
television scanning disk. 1890s
Victorian Trade Card predicts a device that can transmit picture and
sound. See a scan of this card by clicking
here !
1900 - 1919
1900
First known use of the word
"television" at 1900 Paris Exhibition
1907
Boris Rosing (Russia)
designs mechanical scanner with CRT receiver
1908
Campbell Swinton proposes
CRT for both scanning and receiving.
1911
Rosing and college student Zworykin (as assistant), achieve first transmission
of
images.
Swinton describes CRT system in detail.
1919
RCA becomes subsidiary of
GE. A 28 year old David Sarnoff is named manager.
1920 - 1929
1921
Philo T. Farnsworth, at age
14, has a vision of electronic TV scanning while plowing hay.
1922
C. Francis Jenkins
transmits still pictures by wireless with a mechanical system.
Farnsworth explains his electronic TV system to his high school teacher.
1923
As Westinghouse employee,
Zworykin files patent application for all-electronic system. He is not able to build or demonstrate it at this time.
Ernst Alexanderson starts television work at GE.
1924
Kenjiro Takayanagi starts
his television work in Japan.
1925
Baird demonstrates his
mechanical system at Selfridge's Store in London
Jenkins transmits "moving objects" -- (a windmill) in Washington,
D.C.
Zworykin demonstrates a working system to his bosses at Westinghouse.
1926
Baird gets his first
license to transmit television in London.
Farnsworth gets $6000 advance from George Everson in Salt Lake City.
Philo Farnsworth marries Elma Gardner, and moves to San Francisco.
Alexanderson is proclaimed the "Inventor of Television" by the
press in St. Louis.
1927
January - Alexanderson
demonstrates mechanical TV to Radio Engineers.
(82K)
April - AT&T demos mechanical system - Herbert Hoover televised.
"Television Now Fact", the New York World newspaper
exclaims!
September - Farnsworth transmits a straight line via his electronic CRT
system.
1928
Baird transmits from London
to New York, using his mechanical system.
Takayanagi gives a demonstration of his CRT system in Japan.
Farnsworth demonstrates his CRT system to the press in San Francisco.
Station WLEX, Lexington, Mass., (about 15 miles NW of Boston)
begins
broadcasting via mechanical system.
1929
Zworykin begins development
of the kinescope, his CRT receiver.April 1929 -- W1WX (which would
eventually become W1XAV), the Shortwave and Television mechanical
station, goes on the air.
1930 - 1934
1930
January - David Sarnoff
becomes President of RCA at age 38.
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