d, as a reference to the illustration, Fig. 1, show- the lamp remaining lighted until this substitution, is of storage. batteries and cannot possibly do any harm. ing the rear view, will indicate. This resistance is effected. According to the president of one of the largest storage connected in… … Connected directly across .the alternating current Fig. 2.—TWENTY-AMPERE MERCURY ARC RECTIFIER supply .mains is the compensating reactance; and this TUBE, Fig. 1.—REAR VIEW OF MERCURY RECTIFIER.
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