Practical Electronics/Basic Components
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| Voltage Source |
Current Source |
Controlled Voltage Source |
Controlled Current Source |
Single cell |
Battery of cells |
Grounds
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| Signal Ground |
Chassis Ground |
Earth Ground |
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| Resistor | Variable Resistor |
Potentiometer |
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| Capacitor |
Polarized Capacitor |
Variable Capacitor |
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| Air-core Transformer |
Iron-core Transformer |
Center-tapped Transformer |
Autotransformer | Coil with tickler | Step up | Step down |
| Diode | Light-Emitting Diode |
Zener Diode |
Schottky Diode |
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P-channel |
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N-channel |
| JFET | IGFET enh | IGFET dep |
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PNP |
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NPN |
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| Open Switch | Closed Switch |