Multiple series and constant current arc lamps for direct current circuits. (1907)
Western Electric Company. · Western Electric Company · leaf 34
MULTIPLE AND MULTIPLE SERIESDIRECT CURRENT ENCLOSED ARC LAMPS BULLETIN 5512 (Replacing Bulletin 7040 of December. 1904) AUGUST I, 1907 … FIGURE I View of lamp mechanism,showing multiple unit rheostatand adjustment for variousItages.
Electric lighting · Arc lamps · Wiring devices · Interior lighting fixtures, lamps, and ballasts · Enclosed circuit breakers
Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.