Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 167
FIG. 120.—DRY-BATTERY WALL SET—OPEN. of green silk and is long enough to give sufficient range of motionto the desk stand. The number of conductors In this cord is a … FIG. 121.-STROMBERG-CARLSON TRIPLET. matter which should be given some weight in laying out the schemeof wiring, as the cord is an item of no inconsiderable expense, andon general principles, the fewer the number of conductors in a 10 146 AMERICAN TELEPHONE PRACTICE. flexible cord the better. As an…
Telephone
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