SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
The Baird "Televisor". View of the Scottish electrical engineer John Logie Baird and his invention, the "Televisor". The televisor was the first commercially available television set. The 30 line, mechanical scanning image did not take up the entire screen, but was in fact only 6cm high and 2cm wide. The televisor allowed enthusiasts to watch periodic broadcasts from the Baird/British Broadcasting Corporation (BBC) studios between 1929 and 1932. Baird's mechanical scanning system was replaced in 1937 by Marconi/EMI's electrical scanning system. Baird also pioneered colour, stereoscopic and big screen TV, as well as ultra- short-wave transmission. Photographed in 1927.
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