This is an easy-to-use software utility that helps you calculate the value of any resistor, according to the color code printed on its surface. It may also be used in case of the SMD-type resistors, by decoding their letters and numbers.
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Calculate the color code of a resistor based on the resistor value (and the other way round). Display of closest resistor within the E series / Renard numbers. Another feature: calculation of required resistor value for LED circuits.
Free and small utility for Mac OS X developers that pre-formats color value text
Find web safe HTML colors with a color wheel.
Resistor Color Code Calculator calculates the value of a resistor (an electronic component).
PixelSpy – Determines the magnitude of the various color components
Color Picker is a very easy-to-use color picking tool that may pick color from your computer screen and copy the picked color code to clipboard.