. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. Fig. 35—Transmission characteristic of transatlantic short-wave radio channel.^^ subject to some error because the extent of the deflecting fields cannot be exactly determined, and because of the space charges in the tube. A more accurate method of arriving at the value of e/m is due to H. * A long solenoid carrying constant current creates a uni- form magnetic field in the tube parallel to its axis. The electrons travel in spirals in this field in such a way th
. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. Fig. 35—Transmission characteristic of transatlantic short-wave radio channel.^^ subject to some error because the extent of the deflecting fields cannot be exactly determined, and because of the space charges in the tube. A more accurate method of arriving at the value of e/m is due to H. * A long solenoid carrying constant current creates a uni- form magnetic field in the tube parallel to its axis. The electrons travel in spirals in this field in such a way that when the field has one of a series of values the electrons are focused on the screen. These critical values of the magnetic field are given by the equation H _ 2ir jlm. V; " Potter, R. K., Lnst. Radio Eng., 18, p. 581, 1930. 28 Busch, H., Phys. Zeits., 23, p. 438, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original American Telephone and Telegraph Company. [Short Hills, N. J. , etc. , American Telephone and Telegraph Co. ]
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
