Description: The General Radio 1413 is a reconditioned Precision Decade Capacitor that is not only a precision standard, it is a systems component as well. Connections are made at the rear and each decade provides contact closures for 1-2-4-8 BCD output. Six precision decades are employed to provide a range of 0 to 1.11111 ?F in increments as small as 1 pF and with an accuracy of 0.05% + 0.5 pF. Air capacitors are used for the two lower decades and precision silvered-mica capacitors are used for the remainder.