Researchers have used the latest wireless technology to develop a new radio receiver for astronomy. The receiver is capable of capturing radio waves at frequencies over a range several times wider ...
Marked: "Recepteur Radiotelegraphique / Modele De La / Radiotelegraphie Milituire / Type A1 No. 1289". (Schematic diagram on inside label) English label reads: "Radiotelegraph Receiver Model T.M. 1915 ...
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