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), 1833-1928 · New York : T. Audel & Co. · leaf 116
h transforms theprimary current of low voltage and high amperage into a secondarycurrent of high voltage and low amperage, that is, the quantity of thecurrent is decreased and its pressure increased. The general principles upon which high tension or jump spark ignitionis based are as follows: An… … p 3,981._Automatic spark advance--^ automatic advance is accomplished ^y^^°^^^toi the magneto, and hingedattached at one end to a sleeve throuA^^ ?wo helicoidal ridges at the other end of the armature Along^he amature sriau rotation q£ which engage with similarly shapef sP^«^ee^v|i^tSdinal pull on…
Electrical engineering
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