Agilent/ HP 4440B Decade Capacitor

The 4440B Decade Capacitor is a highly accuracy instrument providing usable capacitances from 40 pF to 1.2 µF. Its 0.25% accuracy makes it an ideal aid for circuit design or as a working standard.

The use of silvered-mica capacitors in all four decades provides higher accuracy, lower dissipation factor and good temperature coefficient. An air capacitor vernier provides 100 pF (from 40 pF to 140 pF) with resolution of 1 pF. Capacitors are housed in a double shield in such a way that increased capacitances from two terminals to three terminals is held to 1 pF.