DECADE RESISTANCE BOXES
A range of units to cover the requirements of both development laboratories and calibration and test departments
4720 Series
Designed for the checking and calibration of insulation testers at voltages of up to 5000V DC, the Tinsley Model 4720 high resistance decade boxes provide up to 9 decades of resolution. The total range covered is from 1 kΩ to 1,111,111,110kΩ using specially selected resistors and high quality switches mounted on an easy to read panel.
4721
The Tinsley Model 4721 decade box is designed for the checking and calibration of insulation testers at voltages of up to 5000V DC. The total range covered is from 1 kΩ to 1TeraΩ using specially selected resistors and a high quality switch mounted on an easy to read panel.
