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 430
Variable inductance Li may be of the usual type, variable bysteps. Condenser C2 may be variable by steps, and is not neces-sarily continuously variable. Ci and Li are adjusted to approxi-mately the wave length of the incoming signal, but it is notessential that the primary be accurately tuned. It… … Fig. 239-a.—Tuned plate regenerative tuning circuit, using continu-ously variable inductances. carefully adjusted until maximum response is secured in thetelephone receivers. This same circuit can be used for receiving continuous wavesby the autodyne method (see Section 205, p. 503) by adjust-ing…
Telegraph, Wireless · Radio
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