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A crystal radio receiver, ... Hobbydyne Crystal Radios History and Technical Information on Crystal Radios; Ben Tongue's Technical Talk Section 1 links to "Crystal ...
The SCR-508 radio was a mobile Signal Corps Radio used by the U.S. Army during World War II, for short range ground communications.The SCR-508 series radio represented the Army's commitment to both FM and crystal tuning, and was used extensively by armor and mechanized units.
A buzzer circuit, powered by a BA-4 battery, was mounted in the box cover and used to adjust the crystal. The set was compact and mounted in a wooden box, type BC-14. The lid of the box held the buzzer circuit, detectors, a screwdriver, two P-11 telephone headsets, spare parts, extra crystals, and an operating manual, “Radio Pamphlet No. 3 ...
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The foxhole radio, like a mineral crystal radio receiver, had no power source and ran off the power received from the radio station. They were named, likely by the press, for the foxhole, a defensive fighting position used during the war. There are also accounts of prisoners of war in World War II and in the Vietnam War having constructed ...
Greenleaf Whittier Pickard (February 14, 1877 – January 8, 1956) was an American electrical engineer and inventor. He was largely responsible and most famous for the development of the crystal detector, the earliest type of diode detector, although he was not the earliest discoverer of the rectifying properties of contact between certain solid materials. [1]
Blonder Tongue Laboratories Inc. is a global communication equipment supplier for TV broadcasters, cable system operators, lodging video, internet systems and institutional systems. [ 2 ] [ 3 ] A cable television pioneer, the company was founded in 1950.
You know who Crystal Mangum is, even if you don't know her name. Ten years ago, on the night of March 13, 2006, Mangum and another woman were hired by members of the Duke Lacrosse team to dance ...