Telephone Apparatus An Introduction to the Development And Theory
The book Telephone Apparatus An Introduction to the Development And Theory was written by author George Defrees Shepardson Here you can read free online of Telephone Apparatus An Introduction to the Development And Theory book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Telephone Apparatus An Introduction to the Development And Theory a good or bad book?
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DOLBEAR. Jour. Fkln. Inst. , 121:24 (Jan. , 1886). 1 Example shown by THIESS and JOY. Toll Telephone Practice, p. 373. Early magneto transmitters shown by POOLE. Practical Telephone Handbook, pp. 50-53. 3 See 57-63- 4 See 75-81. 6 See investigations by CROSS and WILLIAMS. Proc. Amer. Acad. Arts and Sci. , 24:113 (Nov. 14, 1888); Elec. Eng. N. Y. , 8:213 (May, 1889). TELEPHONE TRANSMITTERS 85 slant spreads out from the pole-pieces in various directions, so that hardly any two turns in the coil i...nclose the same num- ber of lines of flux, the outside turns near the permanent magnet inclosing the most, the inside turns near the dia- phragm inclosing the least amount of flux. As the diaphragm bends to and fro, the distance between the diaphragm and the pole-pieces of the magnet varies, thus changing the mag- netic reluctance and modifying l the distribution and, to a somewhat smaller extent, the quantity of magnetic flux be- tween the magnet pole-pieces and the diaphragm. As the diaphragm vibrates, the greater rate of change of inclosed flux will be in the inside turns closest to the diaphragm.
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