Who invented radios and TVs?

Answer 1

Philo Farnsworth (1906-1971), American inventor and pioneer in television technology. Farnsworth developed a television system complete with receiver and camera, but he failed to produce his system commercially.

Philo Taylor Farnsworth was born in Beaver, Utah. His family moved to Rigby, Idaho, when he was 11 years old, where Farnsworth began experimenting with electricity. In 1920, when Farnsworth was 14, he showed his high school chemistry teacher a design he had made for an electronic television. The next year Farnsworth entered Brigham Young University as a special freshman. Farnsworth soon left school and worked at odd jobs until he met a willing investor who lent him money to start building his television.

The television systems being experimented with at that time consisted of a system of spinning disks with holes punched in them and mirrors designed to convert light to electricity. These disks and mirrors could give only poor resolution. Farnsworth called his device an image dissector because it converted individual elements of the image into electricity one at a time. He replaced the spinning disks with cesium, an element that emits electrons when exposed to light. Farnsworth applied for a patent for his image dissector in 1927. The development of the television system was plagued by lack of money and by challenges to Farnsworth's patent from the giant Radio Corporation of America (RCA). He spent his career as head of the Farnsworth Television and Radio Corporation, which he founded in 1929.

In 1934, the British communications company British Gaumont bought a license from Farnsworth to make systems based on his designs. In 1939, the American company RCA did the same. Both companies had been developing television systems of their own and recognized Farnsworth as a competitor. World War II (1939-1945) interrupted the development of television. When television broadcasts became a regular occurrence after the war, Farnsworth was not involved. Instead, he devoted his time to trying to perfect the devices he had designed.

In addition to his television system, Farnsworth invented the first simple electronic microscope and the cold cathode-ray tube, which was used in some early televisions. A cathode-ray tube (CRT) is an electron tube that converts electrical signals into a pattern on a screen and forms the basis of the television receiver. Unlike most cathode-ray tubes, cold cathode-ray tubes produce electrons without being heated.

Farnsworth also worked as a consultant in electronics and later as a researcher in atomic energy. He conducted research on radar and on nuclear energy. Farnsworth held 165 patents, mostly in radio and television.

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Answer 2

TVS, otherwise known as Television Sydney is a free-to-air community television station (www.tvs.tv). It was established with the support of the University of Western Sydney (www.uws.edu.au) and Metro Screen (www.metroscreen.org.au) by former Seven Network executive Laurie Patton who is the station's chief executive.

Answer 3

Guglielmo Marconi is usually credited with the invention of radio and Vladimir K. Zworykin of RCA with the invention of TV.

However there were many other inventors working on and experimenting with both long before they patented their inventions and began manufacturing and selling them. For example Philo Taylor Farnsworth was the first to invent an all electronic TV system similar to the one that became the modern analog TV standard (before digital replaced it), there were several lawsuits over the validity of the Farnsworth vs. the Zworykin TV patents and although Farnsworth ultimately won he never really made any money from his work on TV.

There have also been many inventors that improved on both. One major example is Edwin Howard Armstrong, who invented the superheterodyne radio system which is used in all modern radios, TV, RADAR systems, GPS receivers, microwave communication systems, most transmitters, etc. Without his invention we would still have many of these things, but tuning to different stations and receiving distant weak stations would be very difficult.

Answer 4

philo Taylor farnsworth invented the television at the age of 14 but had a working product at the age of 21.

Answer 5

John Logie Baird showed the public his invention on 16th November 1925.

Answer 6

The modern day television was invented by Philo Farnsworth. He is credited with being a pioneer in the world of television sets.

Answer 7

Hugo Gernsback , one of the fathers of Ham radio and a science fiction writer used the term in hyphenated form Tele-Vision in his l9l4 Electro importing catalog!

Answer 8

The television was invented by Philo Farnsworth and Charles Francis Jenkins.