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Best transistor radio6/29/2023 Capable of carrying out the same function as a valve but much smaller and not prone to overheating, the transistor opened up new possibilities for smaller radios and new directions in radio design. H5580-7 Packaging for transistor radio, paper, made by Regency Division IDEA Inc, America, 1955-1964Ī major development came in 1948 when US scientists William Shockley, Walter Brattain and John Bordeen invented the world’s first solid-state amplifier, which they named a ‘transistor’. In the 1930s and 1940s the size and power consumption of car radios decreased, while the introduction of the ferrite rod aerial improved reception. Other problems included bulky valves, overheating and high power demand, which could drain a car’s battery. ![]() They were made to be installed in cars, but were virtually unusable while moving due to interference from the engine and electrical system. Some of the first compact radios were produced in Australia at this time. The number of broadcast transmitters in Australia increased from eight in 1924 to 31 by 1930. All were battery-operated until the introduction of mains operation in1928, but the early batteries were large, as were the radios. Until the 1920s most radios sold in Australia were imported, but after that date increasing numbers were manufactured locally. It is significant for the way it combines science, design, and culture: the solid state physics that led to the development of the transistor the aesthetics and functionality of the plastic radio body and the portability that took radio out of the home and made listening to it more often an individual experience rather than a group activity. This Regency TR-1 transistor radio was one of the earliest portable radios imported into Australia. ![]() Share: Email this H5580-1 Radio, portable TR-1 radio receiver, plastic / metal, designed by Painter, Teague & Petertil, made by Regency Division IDEA Inc, USA, 1954-1956
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