Within a year, other companies, such as Emerson, General Electric and Raytheon, all began selling transistor-based products. Texas Instruments devised processes for mass-producing transistors for their radios, and in the process, proved that transistors and their subsequent products could be affordable, more portable and more effective than vacuum tubes. The transistors, though, were what really made the project possible. 1970s Hifi gear For over 20 years as a full-time business, UrbanRadio has provided professional restoration of Antique Radios from the 1920s to 1960s and. If you’re interested in how superhet radios work, Transistor Superhet Receivers by none-other than Sir Clive Sinclair himself is an excellent book. The speaker, capacitors, and other components were created just for this project. The S-74 is a reasonably simple six-transistor superheterodyne radio receiver, powered by four 1.5V AA batteries, with a channel switch and an internal antenna. VINTAGE 1970s ZENITH MINIATURE TRANSISTOR RADIO. The transistor radio and the cassette had become associated technologies by the 1970s, with widely popular cheap radio cassette players, and the cassette. 18, 1954.įrom start to finish, the race to create the TR-1 required innovative new parts that would fit inside a pocket-sized case, which would be small enough to really capture the world's attention. 1970's Hacker Ranger RP70 MW/LW Transistor Radio Cork/Suede Untested. /rebates/&.com252fstock-photo252ftransistor-radio-1970s. Together, the two companies created a radio called the Regency TR-1, which was announced on Oct. Texas Instruments used Bell Labs' breakthroughs in germanium transistors to develop a small, pocket-sized transistor radio, with the help of a small Indiana company named IDEA. Device manufacturers had been using vacuum tubes profitably for many years, so they were understandably leery about switching to transistors.īut Pat Haggerty, vice president at a company called Texas Instruments, was convinced that transistors were going to revolutionize the electronics industry. In 1954, transistors were proven but novel electronic components. All our radios are equipped with a 50 W analogue amplifier, allowing the sound of tube amplifiers to be reproduced with modern dynamics. Convincing manufacturers that this basic concept would work on mass-produced products, however, wasn't such a simple task.
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