Spot Galvanometer

High sensitivity, very useful as null detector. Housed in sturdy plastic case with in-built lamp and scale arrangement, taut band type movement, with Alcomax magnet, clamp and free arrangement for safe transportation, easy replacement of the 6 V lamp, working on 220V A. C. with internal transformer. With a rotary switch for selecting any of the five shunt powers 1, 1/10, 1/100, 1/1000 and short circuit. Galvanometer resistance : 125 ohms, Current per mm deflection : 5 x 10-8, Volts per mm deflection : 6.25 x 10-6 , Critical damping resistance : 1000 ohms

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