Talk:Elmer William Engstrom

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'' Its first complete test took place in 1939, with a transmitter installed on the eighty-fifth floor of the Empire State Building. A mechanical scanner provided a 120-line, 24-frame picture from live and film subjects, ''

It this correct? The BBC already had a 405-line TV system in operation in 1936, which would put Engstrom's system very behind the times.Algr