36 lines
1.9 KiB
Markdown
36 lines
1.9 KiB
Markdown
---
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title: Resistors
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parent: Components
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type: Resistor
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images:
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- src: ./components/Resistors.webp
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alt: 'These resistors were salvaged from a Reel to Reel recorder'
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usage: "A resistor limits the current going through. This amount of *resistance* is expressed in Ohm (Ω)"
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whereToFind: Everywhere!
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schematicSymbol: https://upload.wikimedia.org/wikipedia/commons/thumb/4/44/IEEE_315-1975_%281993%29_2.1.1.a.svg/200px-IEEE_315-1975_%281993%29_2.1.1.a.svg.png
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alsoKnownAs: "knob, pot, potentiometer, variable resistor, dial"
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---
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You’ll find resistors in nearly every electronic device and schematic. It’s useful to keep a wide range of values around, from 1Ω up to 10 million Ω. Their colored bands indicate their value<ins>waar kun je dat vinden</ins>. In my experience, their values on schematics are usually an indicator, and you can divert slightly without too much impact on your project.
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Variable resistors—like photoresistors and potentiometers—are especially worth salvaging, along with their knobs[^knobs]. They make your circuit interactive with your circuit.<ins>yes, niets meer aan doen</ins>
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[^knobs]: I've found a lot of old gas stoves left out for trash collection. They often have nice knobs, that can be pulled off without need for tools.
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### Types of resistors
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- Carbon or metal film resistor
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*Comes in different values, marked with color bands*
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- Photoresistor
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*Changes resistance based on amient light levels.*
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- Potentiometer
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*A knob-controlled resistor.*
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- Stereo potentiometer
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*Controls two channels at once, often used for stereo audio.*
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- Slide potentiometer
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*A slider-controlled resistor.*
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- Trimpot
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*A small, precise variable resistor you adjust with a screwdriver, used for circuit calibration.*
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- Thermistor
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*Changes resistance based on temperature.*
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<ins>ff alle lijsten checken met wanneer ze wel niet met een punt moeten eindigen - ook footnotes</ins>
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