A variable capacitor is a capacitor whose capacitance may be intentionally and repeatedly changed mechanically or electronically.
Variable capacitors are often used in L/C circuits to set the resonance frequency, e.g. to tune a radio (therefore they are sometimes called tuning capacitors), or as a variable reactance, e.g. for impedance matching in antenna tuners.
Asymmetric, Open shape, Monochrome, Contains straight lines, Has crossing lines.
Category: Engineering Symbols.
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