Ballard, William Cyrus, Jr · New York [etc.] McGraw-Hill company, inc. · leaf 26
e superseded in thenear future on account of certain inherent diffictdties in thesystem. Since this system is only difficultly applicable to radiotelephony it wiU be but briefly discussed here. It is possibleto set up tuned electrical circuits in the same way thatwe produce tuned conditions in… … ^: HIGH-FREQUENCY CURRENTS 11 The string will continue to vibrate a few seconds after beingstruck and will gradually die down to rest. The stringvibrates because it has both elasticity, which allows it to bestretched taut on the sounding board, and inertia due tothe mass of the metal composing the…
Radio
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