直流电阻箱产地:上海直流电阻器是电阻值可变的电阻量具。电阻器中使用的开关是密封的，不需要清洗、接触压力小、寿命长、变压小。1.广泛适合于工厂、学校和科研单位作测量和其他实验之用。2.供直流电路中作精密调节电阻和作已知电阻值之用。3.可供整机校验携带式直流单臂电桥及电阻温度计等。型号-----------参数---------------ZX90:10m -111.10 ,0.1级ZX92:10m -1.111101k ,0.1级ZX95:10m -11.11110k ,0.1级ZX98:10m -111.11110k ,0.1级ZX93:0.1 -11.1110k ,0.1级ZX21:0.1 -99.9999k ,0.1级ZX21A:0.1 -111.1110k ,0.1级ZX96:0.1 -111.1110k ,0.1级ZX99:0.1 -1.1111110M ,0.1级ZX91: 1 -11.110k ,0.1级ZX94: 1 -111.110k ,0.1级ZX97: 1 -1.111110M ,0.1级ZX74: 1m -1.111210k ,0.01级ZX75:10m -11.11111k ,0.01级ZX25A:10m -11.11111k ,0.02级ZX54:10m -111.11111k ,0.01级ZX78:10m -111.1100k ,0.005级ZX76:0.1 -111.1110k ,0.01级ZX77: 1 -1.111110M ,0.05级ZX83: 10 -11.11110M ,0.05级