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 233
t resonance in receiving istherefore accomplished by varying both the inductance and the capacity. 2,324 HAWKINS ELECTRICITY Receiving tuning coil. Detector. Telephone receivers with head band. Variable condenser. Fixed condenser. Storage battery, or dry cells. The aerial switch—This may be but a… … Fig. 3,178.—Variable condenser. One set of plate, as shown, are arranged so that they can berotated about a central axis by means of the swiveled thumb nut, thus interleaving moreor less of the plate area with the other set of plate which are attached rigidly to thecircular cover. The condenser is…
Electrical engineering
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