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 378
e of the antenna circuit low. ADJUSTMENTS OF TRANSMITTING SETS. 373 162. Direct Coupled Transmitting Set.—Direct instead of in-ductive coupling may be used between the closed circuit andthe antenna circuit, as in Fig. 200. (Direct coupling was ex-plained in Sec. 119.) One inductance coil is all… … Fig. 198.—Hinged coil oscillation transformer. series in the closed circuit. By making the part of the in-ductance that is common to both circuits a small part of thetotal inductances in the circuits the coupling can be made asloose as desired. Since direct and inductive coupling arestrictly…
Telegraph, Wireless · Radio
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