Capacitors |
Component | Circuit Symbol | Function of Component |
Capacitor | ![capacitor symbol](http://www.kpsec.freeuk.com/symbols/cap.gif) | A capacitor stores electric charge. A capacitor is used with a resistor in a timing circuit. It can also be used as a filter, to block DC signals but pass AC signals. |
Capacitor, polarised | ![polarised capacitor symbol](http://www.kpsec.freeuk.com/symbols/capele.gif) | A capacitor stores electric charge. This type must be connected the correct way round. A capacitor is used with a resistor in a timing circuit. It can also be used as a filter, to block DC signals but pass AC signals. |
VariableCapacitor | ![variable capacitor symbol](http://www.kpsec.freeuk.com/symbols/capvar.gif) | A variable capacitor is used in a radio tuner. |
Trimmer Capacitor | ![trimmer capacitor symbol](http://www.kpsec.freeuk.com/symbols/captrim.gif) | This type of variable capacitor (a trimmer) is operated with a small screwdriver or similar tool. It is designed to be set when the circuit is made and then left without further adjustment. |
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