Lêer:Regency transistor radio.jpg

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Kameraligging37° 37′ 07,01″ N, 122° 23′ 13,17″ W Kartographer map based on OpenStreetMap.Hierdie en ander beelde in: OpenStreetMapinfo
Beskrywing
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.
Datum GMT
Bron 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.
Outeur Gregory F. Maxwell <gmaxwell@gmail.com> PGP:0xB0413BFA
Toestemming
(Hergebruik van die lêer)		 GFDL-1.2
Ek, die outeursreghouer van hierdie werk, publiseer dit onder die volgende lisensie:
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. slegs 1.2

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coordinates of the point of view Engels

37°37'7.014"N, 122°23'13.175"W

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Datum/TydDuimnaelDimensiesGebruikerOpmerking
huidig05:23, 13 November 2006Duimnaelskets vir weergawe vanaf 05:23, 13 November 20061 444 × 2 176 (609 KG)GmaxwellClone out distraction in upper right corner.
03:48, 13 November 2006Duimnaelskets vir weergawe vanaf 03:48, 13 November 20061 444 × 2 176 (542 KG)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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