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Decade Resistance Box Carbon |
Resistance Substitutions Box :
(ZES 260)
Range 100 ohms to 10 MW given by 16 preferred value carbon resistors 100, 200, 470 ohms, 1,2.2, 4.7, 10,22,47, 100, 220, 470 K ohms, 1,2.2, 4.7 and 10M ohms. Rating 0.5 Watts continuous, 1 Watt maximum. In wooden/metal case with rotary selector switch and a pair of 4mm sockets. |
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Four Dial Resistance Box with Carbon Resistor : (ZES 261)
These carbon resistance boxes comprises of high stability metal film resistors of watt and 3% accuracy. Working voltage is 500 volts. They find wide applications in electronic laboratories and for calibration of Meggers etc.
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(a) 10 10W, 10 100W, 10 1K and 10 10KW |
(b) 10 100, 10 1K, 10 10K and 10 100KW |
| (c) 10 1 K, 10 10K, 10 100K and 10 1 M |
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Six Dial Resistance Box : (ZES 262)
Rest specifications same as above. There are six decades of 10 10W, 10 100W, 10 1KW, 10 10KW, 10 100KW & 10 1MW. Total resistance 111111 MW. |
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