Electricity experimentally and practically applied; a book for the beginner and for the practical man, principles, experiments, practical applications and problems (1910)
Ashe, Sydney Whitmore · New York, D. Van Nostrand company · leaf 241
o-magnet when the glower begins to conduct. A ballast resistance, Fig. 282, placed in series with the glower, having a positivetemperature coefficient,neutralizes the decreasedresistance of the glowerwhen operating. Theheater contains a coil ofplatinum wire. Thecolor of the light isagreeable, being… … 3 Glower Lamp Fig. 282. — Circuits for Nernst Lamp. glass globe. The life of the Nernst lamp glower is givenby the Nernst Lamp Com.pany for the alternating current 220 EXPERIMENTAL ELECTRICITY glower at 800 hours when operated at 60 cycles. Thereare two types of the glowers, depending upon…
Electricity · Electrical engineering
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