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The IEC DECADE RESISTANCE BOX is a classic instrument in the electrical lab. Resistance is dialled up in decades and a pair of 4mm spin free IEC terminals allows a low resistance connection. An earth terminal is fitted also to the housing.
There is a large range of 3 dial, 4 dial, 5 dial and 6 dial boxes covering many ranges. The value of each resistor is calibrated to better than 1% accuracy, with the exception of the 0.1 steps which are within 5%. Each step can dissipate 1 watt of heat.
Instruction Sheet included.
