Multiple series and constant current arc lamps for direct current circuits. (1907)
Western Electric Company. · Western Electric Company · leaf 25
FIGURE 13View of lamp mechanism, showing twitch side with frequency terminal … FIGURE 14View cf lamp mechanism, showing taps for adjusting lamps for various voltages
Electric lighting · Arc lamps · Wiring devices · Interior lighting fixtures, lamps, and ballasts · Enclosed circuit breakers
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