Hawkins electrical guide ... : questions, answers & illustrations : a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications ; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833-1928 · New York : T. Audel & Co. · leaf 89
wires through the hole in the back of the telephone set and then fasten the set securelyto the wall so that the wires pass up or down into the set along the slot at the back. 2,182 HAWKINS ELECTRICITY 87. Desk stand cord short circuited on plan 3 or 5 extension. Effect: That extension bell will… … Fig. 3,001.—Installing a magneto set: 5. Adjustment of ringer. If necessary to adjustringer, the armature should be so adjusted that the clapper ball has a movement of ^inch. To obtain this, turn the screw A to the right to shorten the stroke, or to the leftto lengthen the stroke. The gongs should…
Electrical engineering
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