![]() ![]() Naturally, it wanted to find such a product- a “killer app” in today’s terminology-something that could show transistors off to great advantage and thereby help rapidly build up demand. Texas Instruments had demonstrated all-transistor AM (amplitude modulation) radios as early as 1952, but their performance was well below that of equivalent. Texas Instruments was one of the companies licensed by Bell to produce transistors. Company that introduced the transistor radio in 1952 is a crossword puzzle clue that we have spotted 1 time. While hearing aids were a very appropriate application for the technology, they were not a mass market product. Since miniaturization was a key benefit, it should not be a surprise that the first transistorized product available in the United States was a hearing aid, released by Sonotone in 1952. Sony introduced the transistor radio in 1954. When Bell Labs put the transistor on the market in 1952 they had few takers apart from a small Japanese start-up called Sony. The challenge then became one of finding products that could really benefit from the technology. The present invention relates to transistor radio apparatus, and more particularly to circuitry incorporating transistors for use in a radio receiver. At the time, radio sets were rather large. However, it was not until 1950, with William Shockley’s development of the bipolar Junction transistor, that transistorized devices became generally practical. While the history of the solid-state transistor began around the early 1900s, the first demonstration of a working transistor is generally agreed to have taken place at Bell Labs in December 1947. Half as big as a penny matchbox, an experimental two-stage transistor amplifier does the work of miniature-tube amplifiers ten times larger. Moist Paper and Coin generate enough current to drive audio oscillator using junction transistors. In some ways, it was the result of a solution in search of a problem. This new transistor runs on as little as one-millionth of the power of small vacuum tubes. First released in October 1954, the Regency TR-1 was the first transistor radio commercially available. Most notable were germanium power transistors designed for car radio audio output as shown above, the quantity of this type of transistor manufactured by. ![]()
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