Resistor Color Code Calculator - 4 band, 5 band, 6 band | DigiKey Electronics
Parallel Resistor Calculator - Soldering Mind
Resistors - Color Codes Calculator
Resistor Calculator Download: Using this simple and user-friendly application, you can quickly calculate the correct values of a resistor based on its various color bands
Resistor Calculator
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LED Resistor Calculator:Amazon.co.uk:Appstore for Android