Ymele:Regency transistor radio.jpg

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Camera location37° 37′ 07.01″ N, 122° 23′ 13.17″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo
Towritenness
English: Regency TR-1 transistor radio, the first commercial transistor radio, which debuted October 18, 1954. Designed by Texas Instruments and IDEA, the TR-1 had a superheterodyne circuit with only 4 transistors: a combined local oscillator/mixer, two IF amplifiers, and one audio amplifier. Within one year of release, TR-1 sales approached 100,000. The transistor radio was the most popular communications device in history, with billions manufactured during the 1960s and 1970s. Courtesy of Steve Kushman.
Tælmearc GMT
Fruma Photo by uploader, taken at The History of Audio: The Engineering of Sound, an exhibition of the San Francisco Airport Museums[1] in SFO Airport, Terminal 3 from 2006-09 to 2007-05.
Dædfruma Gregory F. Maxwell <gmaxwell@gmail.com> PGP:0xB0413BFA
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I, the copyright holder of this work, hereby publish it under the following license:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 only as published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. 1.2 only

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12 Blotmonað 2006

37°37'7.014"N, 122°23'13.175"W

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Dæg/TidMetungincelMicelnesse gemetuBrucendYmbspræc
nu05:23, 13 Blotmonað 2006Metungincel þære fadunge fram 05:23 on 13 Blotmonað 20061,444 × 2,176 (609 KB)GmaxwellClone out distraction in upper right corner.
03:48, 13 Blotmonað 2006Metungincel þære fadunge fram 03:48 on 13 Blotmonað 20061,444 × 2,176 (542 KB)Gmaxwell{{Location dec|37.618615|-122.386993|scale:1000}} {{Information |Description=Regency TR-1 transistor radio circa 1956. Courtesy of Steve Kushman. |Source=Photo by uploader, taken at ''The History of Audio: The Engineering of Sound'', an exhibition of the

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