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 75
imnrlnnriUrij /O /O M lO /O /O /O lO /O … is a slight advantage to have permanent connections a, 6, and c, because all the coils of adecade can be thrown in circuit by simply pulling out a plug, it not being necessary toinsert it again, as would be the case if the a, ft, and c connections were not used. More-over, if any plug make bad…
Electrical engineering
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