The principles underlying radio communication (1922)
United States. National Bureau of Standards, Ould, Richard Sheldon, 1889-, United States. Army. Signal Corps · Washington, Govt. Print. Off. · leaf 436
ning condenser C2 in Fig. 236 are rotated rapidly the appa-ratus will be in tune once for each revolution. Each of theserevolutions will produce an impulse of the telephone diaphragm.The speed can be adjusted so that the impulses will cause soundswhile waves are being received. In practice it is… … Heterodynemethod forreceiving con-tinuous waves. near the resonance adjustment. To accomplish a more pro-longed train of impulses during one revolution the adjustmentcan be held near resonance for a larger proportion of the timeif the rotating condenser is made very small, and is put inparallel…
Telegraph, Wireless · Radio
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