Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 100
ires from the conducting base. A considerable advantage has beenclaimed for this type of coil mounting, due to the presence of the 78 AMERICAN TELEPHONE PRACTICE. iron case about the coil, thus rendering the magnetic circuit morecomplete. This, however, is a point of doubtful validity, as it maybe… … FIG. 62.—TRANSMITTER MOUNTED ON ARM. appreciable effect one way or another on the quality of the trans-mission. Only a few series of experiments ire on record from reliablesources giving the results of comparative tests between inductioncoils of various dimensions. It may be said that definite…
Telephone
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