. Electrical world. j+v^ ..V \^\simur^>+ FIG. 2.—WIRELESS TELEGRAPHY. this purpose with non-inductive or inductive resistances, w. As soonas one spark occurs, the whole circuit closes within itself. Thelarge charging resistances are then practically inactive. If whollyunforeseen peculiarities of the spark do not exist, then the spark willalso act in the same manner as in a single system. It is possibleto obtain, as in Fig. 3, the same efltects (final voltages, heatingeffects, etc.) simultaneously on each of three artificial transmitterswhich are tuned to one another. The same efficiency is,
. Electrical world. j+v^ ..V \^\simur^>+ FIG. 2.—WIRELESS TELEGRAPHY. this purpose with non-inductive or inductive resistances, w. As soonas one spark occurs, the whole circuit closes within itself. Thelarge charging resistances are then practically inactive. If whollyunforeseen peculiarities of the spark do not exist, then the spark willalso act in the same manner as in a single system. It is possibleto obtain, as in Fig. 3, the same efltects (final voltages, heatingeffects, etc.) simultaneously on each of three artificial transmitterswhich are tuned to one another. The same efficiency is, FIGS. 3 AND 4.—WIRELESS TELEGRAPHY. obtained with a number of oscillatory circuits as applies to each oneof them. There is no appreciable diflEerence in phase. Fig. 4 indi-cates the arrangement for series connection. Various other arrange-ments are described which show that it is possible to increase—without altering the frequency of oscillation—the energy of the singlesystem whenever the energy limits in such single systems are reached.—Lond. Elec, .April 22. Hireless Telegraphy.—Seibt.—A long mathematical article on thedesign of resonance transformers for use in wireless author remarks that the hopes that had been set on tuning thetransmitting and receiving stations to the same frequency have beenfulfilled in practice only to a very small degree. In order to protectones self against disturbances from other stations, the only meansis at present to diminish artificially the receiver intensity and toincrease the transmitter intensity. This means the necessity
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883
