had to catch the attention of the public. and his partner Akio Morita thought and thought. It all started 60 years ago with this. the way for the long-predicted transistorization and miniaturization of The 22.5 V battery, while now uncommon, is still used in some devices and as of 2019[update] remains available on the market. Texas Instruments announced plans for the Regency TR-1, the first transistor radio to be commercially sold, on October 18, 1954. It was the first practical transistor radio made in significant numbers. Surviving specimens are sought out by collectors. The TR-1 is a superheterodyne receiver made[10] with four n-p-n germanium transistors and one diode. The initial TR-1 retail price was $49.95 (roughly $443 in year-2016 dollars) and it sold about 150,000 units[5]. In May 1954, Texas Instruments was looking for an established radio manufacturer to develop and market a radio using their transistors. — P. 170–178. The portable radio in American life. producing a radio they named the TR-55. The transistor radio was the first mass-market product of any kind to be designed from inception as a purely transistor device, exploring and paving the way for a future of space travel, personal computers, and mobile phones—all of which would be impossible without the transistor, arguably the most significant invention of the 20th Century. The receiver has automatic gain control. They needed a new name. n' roll. The Regency TR-1 was the first commercially manufactured transistor radio. outsourced the TR-1 exterior design to the industrial design firm of Painter, Teague and Petertil. had also decided to make small radios. TI knew that it needed a UK Marks First Coal-Free Day Since Industrial Revolution, Say Hello to the First Female Chief Ranger in This National Park's 85-Year History, Grieving for Notre Dame Cathedral in the Age of Social Media, 3,700-Year-Old Remains of Egyptian Woman Reveal She Was Very Pregnant When She Died, Strange, 200-Year-Old Labyrinth Underneath Liverpool Remains a Mystery, Yodel-Ay-Hee-Hoo! No major radio maker, including RCA, Philco, and Emerson, was interested. TIers can justly be proud When Regency quit Startup Japanese Company Becomes a Giant. This gives a larger depletion layer between the collector and the base which reduces the parasitic feedback due to the Miller effect and extends the frequency range. like that. The President of I.D.E.A. In fact, they were eagerly buying transistor licenses from Bell, but if they were The Regency TR1 was the first consumer device to use transistors. ideas. The first transistor used as a frequency converter was operated very close to its VCBO of 30 volts (from the 22.5 volt battery). [9], Schiffer, M. B. Transistors may have been useful to the phone Two companies—Texas Instruments of Dallas, Texas, and Industrial Development Engineering Associates (I.D.E.A.) It should; 60 years ago the first portable transistor radio went on sale. Page. company and to a handful of scientists building computers, the Regency TR1 was put on the market. But over in Japan, a tiny company had other inches high and used four germanium transistors. Is What It's Good For! Though this severely reduced the audio output volume, it let I.D.E.A. was poised to enter the US market. you could hear news of the world. The look and size of the TR-1 were well received, but reviews of its performance were typically adverse. First sold in 1954, it was a novelty due to small size and portability; about 150,000 units were sold despite mediocre performance. -internal However, lining up the Regency, Rams' radio and the iPod, it really does look like an evolution of design thinking. Previously, Texas Instruments produced instrumentation for the oil industry and locating devices for the U.S. Navy—and I.D.E.A. Don Pies, son of the co-founder of Regency, writes on his Regency TR1 website: Steve Wozniak had one as a kid and is a fan, saying "My first transistor radio...I loved what it could do, it brought me music, it opened my world up." The design won an award from the Industrial Design Society of New York and was selected by the Museum of Modern Art for the American Art and Design Exhibition in Paris in 1955. The TR-1 was the first transistor radio made in 1954. Other later, rare colors included lavender, pearl white, turquoise, pink, and lime. Capacitors came from International Electronics, Inc. of Nashville,[1] Erie Electronics of Erie, Pennsylvania, and Centralab of Milwaukee, Wisconsin. 1999, ScienCentral, Inc, and The American Institute of Physics. The two intermediate frequency amplifier transistors are neutralised to cancel out their parasitic Miller effect feedback which also extends their frequency range. A between the Regency Division of Industrial Development Engineering [7], I.D.E.A. [3] The Regency TR-1 is patented by Richard C. Koch, US 2892931 , former Project Engineer of I.D.E.A.[4]. Thanks to Don Pies and his wonderful retro website keeping the history of the Regency TR-1 alive. Stages are transformer coupled, with tuned transformers for the intermediate frequency amplifiers and a miniature audio transformer for the loudspeaker. The actual plastic case for the TR-1 was produced by Argus Plastics in Indianapolis, Indiana. On October 18, 1954, Replacement transistors were supplied with the correct neutralising capacitor of 100-200 pF. The current drain from this battery is only 4 mA,[6] allowing 20 to 30 hours of operation, in comparison to only several hours for the portable receivers based on vacuum tubes. Lloyd Alter is Design Editor for Treehugger and teaches Sustainable Design at Ryerson University in Toronto. Page >. built home television antenna boosters. Texas Instruments caused the sensation TI built the An optional earphone sold for $7.50.[9]. at the time, Ed Tudor, jumped at the opportunity to manufacture the TR-1, predicting sales of the transistor radios would be "20 million radios in three years. from an adult's ears -- it sparked a musical revolution: rock — Cambridge University Press, 2004. Tsushin Kogyo was close to manufacturing its The TR-1 uses Texas Instruments' NPN transistors, hand-picked in sets of four. [7], While the radio was praised for novelty and small size, the sensitivity and sound quality were behind the tube-based competitors. transistors; Regency built the radio. Released in 1957, it was considered the world’s first, truly pocket-sized radio and was the first to utilize all miniature components.

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