. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. THE CATHODE RAY OSCILLOGRAPH 7 mined that cathode rays have mass as well as charge. Thomson's tube ^ is shown in Fig. 7. The Braun tube immediately found many applications. One of the most fruitful fields for it was its use by Professor Zenneck in studying radio circuits and the transmission of radio waves. From Professor Zenneck and his school there are still papers coming out on work done by means of the Braun tube. The tube was introduced in this country. Fig. 8—Ebe
. The Bell System technical journal. Telecommunication; Electric engineering; Communication; Electronics; Science; Technology. THE CATHODE RAY OSCILLOGRAPH 7 mined that cathode rays have mass as well as charge. Thomson's tube ^ is shown in Fig. 7. The Braun tube immediately found many applications. One of the most fruitful fields for it was its use by Professor Zenneck in studying radio circuits and the transmission of radio waves. From Professor Zenneck and his school there are still papers coming out on work done by means of the Braun tube. The tube was introduced in this country. Fig. 8—Ebert and Hoffmann, 1898—tube by Geissler.^ very early. Professor H. J. Ryan, then at Cornell, in 1903 described measurements on high voltage power circuits, and similar work has appeared occasionally ever since from Professor Ryan's hand. After the invention of the tube there were a number of improve- ments that made it more convenient and its operation more reliable. Figures 8-12 show some of the many designs of tubes of this time. * Thomson, J. J., Phil. Mag., 44, p. 293, 1897. 6 Ebert and Hoffmann, E. T. Z., 19. p. 405, 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
