Wiring diagrams of electrical apparatus and installations (1913)
McGraw-Hill · New York, McGraw-Hill Book Company · leaf 151
Fig. 216.—Internal connections of an al-ternating-current arc lamp for operation onmultiple circuits. Fig. 217.—Internal connections of a direct-current arc lamp for series operation 140 WIRING DIAGRAMS OF ELECTRICAL APPARATUS … Srar^f^3/^on
Electric wiring
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
