General Radio 1422D Features:
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/div 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.
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