Adcock 1954 ID Number 1984.0040.01 accession number 1984.0040 catalog number 1984.0040.01 model number TR-1 Object Name radio receiver Physical Description red (case color) cardboard (box material) plastic (case material) Measurements receiver: 12.7 cm x 8.7 cm x 3. Capable of receiving AM stations, the radio cost about $50 (that would be almost $400 today.) Location Currently not on view Credit Line from Dr. Texas Instruments built the transistors and the Regency division of I.D.E.A. (Industrial Development Engineering Associates) and Texas Instruments. The Regency model TR-1 contained four transistors. The Regency TR-1 The first transistor radio was created as a joint project between I.D.E.A. Work began in earnest in the spring of 1954, and this first Regency transistor radio was in stores for the Christmas season later that year. Planning began in 1951 between Idea and Texas Instruments, supplier of the transistors. A small, portable radio seemed a good opportunity, and a company called Idea Incorporated designed and produced the Regency. In 1953 hearing aids became the first commercial product to use transistors. Here is an early vintage pocket radio (Regency TR-1G) with a labelled diagram of components and circuit. As engineers learned how to use the new invention, plans were made for commercial products that could take advantage of the transistor's small size, energy efficiency, and rugged design. TRANSISTOR RADIO UNTESTED Pre-Owned 408.00 bollegs (38,444) 100 31 bids course I already knew this but wondered how a radio could run on. Despite mediocre performance, about 150000 units were sold. while looking back at a few old threads I noticed the TR-1 runs on a 21 and 1/2 volt battery. In 1954, Texas Instruments designed and manufactured the first transistor radio. At first the US military bought all the transistors Bell Labs could make, and the company agreed to license other manufacturers. The Regency TR-1 was the first commercially manufactured transistor radio, introduced in 1954. Bell publicly announced the new invention on 30 June 1948. 'In May 1954, Texas Instruments had designed and built a prototype transistor radio and was looking for an established radio manufacturer to develop and market a radio using their transistors. It used Texas Instruments NPN transistors. I THINK ITS IN NICE CLEAN CONDITION / CASE LOCKS NICELY WITH RADIO AND THE CASE IS IN GOOD SHAPE. It used Texas Instruments NPN transistors. VINTAGE REGENCY TRANSISTOR RADIO MODEL TR-1. The first laboratory demonstration took place on 23 December 1947. The Regency TR-1 was the first commercially produced transistor radio. Building on war-time research, John Bardeen and Walter Brattain, working with group leader William Shockley, developed a device they called a transistor. One goal was to find a replacement for fragile and energy-wasting vacuum tubes. Object Details Idea Incorporated Description During World War Two scientists and engineers at Bell Laboratories conducted research on many radar and radio devices.
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