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 232
Fig. 272. — Tantalum Fila-ment. … O )l-AMP SOCKET V\AMAr voltmeter resistanceFig. 273. — Circuit illustrating Posi-tive and Negative TemperatureCoefificient. b
Electricity · Electrical engineering
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