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 230
208 EXPERIMENTAL ELECTRICITY … Fig. 269. — Fila.ment Mount. sealed in a glass stem, Fig. 269. To the other end of theplatinum wires are soldered two copper lead-ing-in wires. The platinum wires are neces-sary where the wires pass through the glass,as platinum has the same coefficient of expan-sion as the glass, and the glass…
Electricity · Electrical engineering
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