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 243
current only in the right direction. Open switch B, close switch T to the right;discharge lever can be in any position; charging regulator lever must be to the extremeleft, the zero position; now close main switch M. ^loving regulator lever R from the zeroposition to the first button or contact,… … ntAMSFORMrn
Electrical engineering
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