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 219
ll four variable contacts are at their proper points, canhardly be excelled for resonance by any other receiving system. In the C circuit, an inductively coupled tuner or loose coupler isshown. This is considered the best tuning inductance known, especiallywhen both primary and secondary are… … Fig. 3,160.—Loose couple receiving transformer with variable contacts. This has an ad-vantage over the type of receiving tuner with a secondary variable slider in that the induc-tance is varied from the end of the secondary and can be inserted far into the primaryinductance. But it has the…
Electrical engineering
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