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 357
simple ^fjarK cJiachar^e a^^ratua … Qu«,nehed S^nC Dischai^p current regularly interrupted by a vibrator operated by thetransformer (induction coil). For the use of the induction coil,as in radio trench sets, see Section 157. The principle is beststudied first in the alternating-current method. In Fig. 180, P and *S are the primary…
Telegraph, Wireless · Radio
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