Practical Electronics/Basic Components

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Power Sources[edit | edit source]

Voltage Source.svg Current Source.svg Voltage Source (Controlled).svg Current Source (Controlled).svg Battery symbol1.svg Battery symbol2.svg
Voltage
Source
Current
Source
Controlled
Voltage
Source
Controlled
Current
Source
Single
cell
Battery
of cells

Grounds[edit | edit source]

Signal Ground.svg Chassis Ground.svg Earth Ground.svg
Signal
Ground
Chassis
Ground
Earth
Ground

Resistors[edit | edit source]

Resistor symbol America.svg Variable resistor symbol.svg Potentiometer symbol.svg
Resistor Variable
Resistor
Potentiometer

Capacitors[edit | edit source]

Capacitor Symbol.svg Polarized capacitor symbol alternative.svg Variable capacitor symbol 2.svg
Polarized capacitor symbol 2.svg
Polarized capacitor symbol 3.svg
Polarized capacitor symbol 4.svg
Capacitor
 
Polarized
Capacitor
Variable
Capacitor

Transformers[edit | edit source]

Transformer Air Core.svg Transformer Iron Core.svg Transformer Centre-tap Iron Core.svg Autotransformer.svg Transformer with Tickler.svg Transformer Step-up Air Core.svg Transformer Step-down Air Core.svg
Air-core
Transformer
Iron-core
Transformer
Center-tapped
Transformer
Autotransformer Coil with tickler Step up Step down

Diodes[edit | edit source]

Small diode symbol.png LED symbol.png Zener diode symbol.png Schottky diode symbol.png
Diode Light-Emitting
Diode
Zener
Diode
Schottky
Diode

Transistors[edit | edit source]

JFET P-Channel Labelled.svg IGFET P-Ch Enh Labelled.svg IGFET P-Ch Dep Labelled.svg P-channel
JFET N-Channel Labelled.svg IGFET N-Ch Enh Labelled.svg IGFET N-Ch Dep Labelled.svg N-channel
JFET IGFET enh IGFET dep
BJT symbol PNP.svg PNP
BJT symbol NPN.svg NPN

Switches[edit | edit source]

Open Switch.svg Closed Switch.svg
Open Switch Closed Switch


References[edit | edit source]