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PHY-00541

(Plugin type) the heavy brass contact blocks are bond to the vulcanite plated by the double nut system Each ratio arm has a resistance of 10, 100 and 1000 ohms. The series arm has a resistance of 11,110 x 1 ohm given by 16 coils. Battery and galvanometer keys are provided. Accuracy ratio coils ±0.05%, others ±0.1%.