Resistance Substitution Box

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This resistance substitution box has 12 different values 100W, 220W, 470W, 1KW, 2.2KW, 4.7KW, 10KW, 22KW, 47KW 100KW, 220KW, 470KW. All values are in + 1% tolerance and all the res istance are of 1 watt rating. Show more