IET 1422D Overview
- Dual-range
- Two-terminal capacitor
- Direct reading in total capacitance at the terminals
- Dual ranges of 35 to 115 pF and 100 to 1150 pF
- Initial accuracy is ±0.6 pF. 0.2 pF scale
- 2-terminal type unit
The General Radio 1422D, Standard Variable Air Capacitor, is a stable and precise variable air capacitor intended for use as a continuously adjustable standard of capacitance. One of the most important applications is in ac bridge measurements, either as a built-in standard or as an external standard for substitution measurements.