Радіохвилі: відмінності між версіями
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Вилучено вміст Додано вміст
м недоступне посилання |
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Рядок 80:
* [http://earlyradiohistory.us United States Early Radio History]
* [http://www.vk2bv.org/museum Historic Radios from Around the World at Kurrajong Radio Museum, Australia]
* [http://web.archive.org/web/20040729115544/http://members.aol.com/jeff560/canada.html Early Canadian Radio Station Lists]
* [http://earlyradiohistory.us United States Early Radio History]
* [http://invention.smithsonian.org/resources/fa_clark_index.aspx George H. Clark Radioana Collection, ca. 1880 - 1950] — Archives Center, National Museum of American History, Smithsonian Institution
* [http://web.archive.org/web/19990209121914/http://members.aol.com/djadamson/arp.html A gallery of Antiques from the 1920s to the 1960s]
* [http://www.commandline.net/Radio%20Frequency%20Chart1.htm Radio Frequency Chart] commandline.net.
* IAteacher: [http://www.iateacher.com/Lesson%206/L6P1-Title.htm Interactive Explanation of Radio Receiver Construction]
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