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 40
Fig. 23.—Weston Standard ^Tolt-meter Complete. Fig. 24. — Station Type ofWeston Voltmeter. strength with time. They should not only have high mag-netic strength, but they should not lose this strength whenused. To accomplish this, they are put through a process i8 EXPERIMENTAL ELECTRICITY of aging.… … 25. — Laboratory StandardWeston Voltmeter.
Electricity · Electrical engineering
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