Marconi_crystal_radio_receiver.jpg (754 × 552 pixels, file size: 134 KB, MIME type: image/jpeg)
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current | 15:08, 3 May 2021 | ![]() | 754 × 552 (134 KB) | Materialscientist | FFT |
06:28, 17 May 2010 | ![]() | 754 × 552 (74 KB) | Chetvorno | {{Information |Description={{en|Marconi type 103 Wikipedia:crystal radio receiver}} |Source=Downloaded 2010-03-15 from [http://books.google.com/books?id=avXNAAAAMAAJ&pg=PA68 Elmer Eustice Bucher (1917) ''How to Pass U.S. Government Wireless Lice |
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