WebbQuartz crystals have piezoelectric properties; they develop an electric potential upon the application of mechanical stress. An early use of this property of quartz crystals was in phonograph pickups. One of the most common piezoelectric uses of quartz today is as a crystal oscillator. The quartz clock is a WebbVINTAGE STAIGER West Germany QUARTZ FRANCE LEAD CRYSTAL CLOCK Mantel Desk. $24.00 + $15.60 shipping. Vintage Staiger Lead Crystal Desk Clock Made In West Germany. Sponsored. $29.00 + $21.05 shipping. VINTAGE STAIGER QUARTS WEST GERMANY CRYSTAL OCTAGON DESK CLOCK. $21.00 + $18.95 shipping.
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WebbIn 1925, Westinghouse installed a crystal oscillator in its flagship station KDKA, and by 1926, quartz crystals were used to control the frequency of many broadcasting stations and were popular with amateur radio operators. In 1928, Warren Marrison of Bell Telephone Laboratories developed the first quartz-crystal clock. WebbFind many great new & used options and get the best deals for Shannon Crysyal Mantel Clock 24% Lead Crystal Czech Republic at the best online prices at eBay! Free shipping for many products! diseases of the hypothalamus gland
Crystal oscillator - Wikipedia
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