sep 7, 1927 - First Television

Description:

Philo T. Farnsworth was in his laboratory at 202 Green Street in San Francisco on September 7th, 1927, when he invented the first fully-electric television. An earlier version of a television had been invented by John Logie Bird, but it was mechanical used a rotating disk, was limited to ten frames per second, and had a thirty line image. Philo’s television’s system used his invention of an image dissector, which was a scanning electric tube that converted images into electromagnetic waves that were transmitted from one end of his room to the other where there was a receiver on which the image was displayed. The first transmission was a white line displayed against a dark background. Once he figured out that it worked, he filed a patent for his design. He continued to perfect this new system and finally gave his first demonstration to the press in September of 1928.

Site 1: Wikimedia Foundation. (2023a, April 13). September 1927. Wikipedia. https://en.wikipedia.org/wiki/September_1927#

Site 2: Encyclopædia Britannica, inc. (2023b, April 15). Philo Farnsworth. Encyclopædia Britannica. https://www.britannica.com/biography/Philo-Farnsworth#

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