Wireless Telegraphy Its History Theory And Practice
The book Wireless Telegraphy Its History Theory And Practice was written by author Collins, A. Frederick (Archie Frederick), 1869- Here you can read free online of Wireless Telegraphy Its History Theory And Practice book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Wireless Telegraphy Its History Theory And Practice a good or bad book?
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In Fig. 213, the receptor is shown connected to recording meteorological gauges which are now- being used in France.. LoDGE-MuiRHEAD KECEPTOR. In the new Lodge-Muirhead re- ceptor 1 two distinct resonators have been tested. The first is a *Elec. World and Eng. , Aug. 1, 1903, p. 173. Collins. RECEPTORS. 205 simple open circuit, and the second is a compound-circuit system. The open-circuit resonator comprises an antenna, a, Fig. 214, lead- Fio. 210. CERVERA RECEPTOR. ing to the earth through the... condensers, x and x ; the internal cir- cuits include an inductance, L, a Lodge rotating mercurial coherer, WIRELESS TELEGRAPHY. C, condenser, X 2, and a siphon recorder operated by a current from the cell, E. No relay is interposed between the coherer and the recorder, r f the action being direct. This receptor is syntonized (B), and, different from the first Lodge system, has a grounded resonator (C), it employs a siphon recorder (E), and a voltage-operated detector (a) is placed in a shunt with the internal circuit of the resonator proper, the aerial wire being connected direct to the earth with the condensers interposed (c) ; the resonator is of the open-circuit type with tuned resonator and internal circuits (i) producing a syntonized receptor (j).
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