Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity (1905)
American School (Chicago, Ill.) · Chicago : American School of Correspondence · leaf 401
attracted by the magnets, a projecting hammer serves to tap thecoherer, restoring the high resistance between the points and mak-ing the plate ready for the succeeding impulse. Cj Coherer % ToCoil To Coil f Syplnor* Recorder Lodge-Mvurhead System.Fior. 43. Lodge=nuirhead. Another recent example of… … Lodge-Muirhead System.Fig. 44. lator and resonator circuits will be recognized as well as the induct-ance coils and condensers for obtaining resonance effects. Thereceiver embodies a new rotating mercury coherer, in which a pol-ished steel disc is made to revolve so that its edge runs in,…
Electrical engineering
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