To understand electronic components such as potentiometers, and clock crystal oscillators, you should familiarize yourself with the names and pictures of the components. If you know the name of a part, you can learn to use it in a few browses of the web. I will present the images of a handful of common electronic components that you should know by name and look.
3. TRANSISTORS (they can function as a tiny, but powerful switch which is often used in logic circuits, and can also be used as an amplifier of current)
4. LED: Light Emitting Diodes ("Lights!")
1. THE RESISTOR (Resists flow of electrical current)
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| Blue resistors are usually 5-band resistors, which implies this resistor has a clear band for its 4th band from the left. |
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| Standard 4-band resistor (they are usually tan, not grey) |
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| Big resistor (values are printed directly on the component) |
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| The most basic type: (tan) 4-band resistor |
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| The rectangular prism resistor on the bottom is so big that the labels can be directly printed on it |
2. THE CAPACITOR (Holds a momentary charge of electrical current)
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| Mixed Assortment of Capacitors |
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| Metallized polyester film capacitors |
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| Aluminum electrolytic capacitors |
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| Common electrolytic capacitors |
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| A close-up shot of a ceramic disk capacitor |
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| A bunch of J-FET transistors (Junction Field Effect Transistor) |
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| TOP RIGHT: j-fet transistor BOTTOM RIGHT: Aluminum capped transistor FAR LEFT: mosfet transistor |
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| An inside look at an LED |
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| Some LEDs in the dark |
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