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 239
ibit the valve effect at high differencesof pressure, and heavier metals at low differences of pressure. Quer. Describe the Nodon valve. Ans. The cathode is of aluminum or aluminum alloy, and the RECTIFIERS 1,497 other electrode, which has considerably more surface, is thecontaining vessel. The… … COLLECTOR RINGS INSULATEDTEETH RECTIFIER Fig. 2,070.—Mechanical rectifier. The rectifier consists of two castings M and S with teethwhich fit together as shown, being insulated so they do not come in contact with eachother. Every alternate tooth, being of the same casting, is connected together,…
Electrical engineering
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