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- · New York, T. Audel · leaf 240
_; … PLAN ELEVATION Figs. 2,050 ar.d 2.0S1. —Two views of Nodon valve. This is an electrolytic rectifier in whichthe cathode is a rod of aluminum alloy held centrally in a leaden vessel which forms theanode and contains the electrolyte, a concentrated solution of ammonium phosphate.Only a short portion…
Electrical engineering
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