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Fayl: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
Taʼrif
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.
Sanasi GMT
Manba 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.
Muallif Gregory F. Maxwell <gmaxwell@gmail.com> PGP:0xB0413BFA
Ruxsat
(Bu faylning takror foydalanilishi)		 GFDL-1.2
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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tasvirlangan obyekt

tashkil etilgan

12 noyabr 2006

coordinates of the point of view inglizcha

37°37'7.014"N, 122°23'13.175"W

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Sana/VaqtMiniaturaOʻlchamlariFoydalanuvchiIzoh
joriy05:23, 2006-yil 13-noyabr05:23, 2006-yil 13-noyabr dagi versiya uchun tasvir1 444 × 2 176 (609 KB)GmaxwellClone out distraction in upper right corner.
03:48, 2006-yil 13-noyabr03:48, 2006-yil 13-noyabr dagi versiya uchun tasvir1 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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