GenRad 1417 capacitance standard 1uF - 1F

The IET Labs, GenRad 1417 four-terminal capacitance standard consists of a 1µF standard capacitor and two precise inductive voltage dividers used to scale the value of the 1µF capacitor up to 1F in decade steps.

IET GenRad 1417 Capacitance Standard

In addition to the seven direct-reading capacitance values on the IET Labs, GenRad 1417, an infinite number of intermediate or higher capacitance values can be obtained by using external capacitors. An external capacitor is simply connected to the 1417's external standard terminals, either directly or in parallel with a 1μF internal standard, and the resulting capacitance is scaled in value by the 1417's inductive voltage dividers.


  • 7 switch-selected standard capacitance values: 1µF , 10µF , 100µF , 1mF , 10mF ,100mF , 1F
  • 3 switch-selected test frequencies: 100Hz, 120Hz, 1kHz
  • 0.25% direct-reading capacitance accuracy
  • 0.1% or better ratio accuracy