Resistor Color Codes

Electronics Tools & Calculator

Electronics circuit tools, calculators, simulators and component references.

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Electronics Circuit Calculator

Circuit calculator for RLC, op-amps, 555 timers, filters, PCB & RF tools

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Electrician Bible Lite

NEC 2023 electrical calculations, code references, conduit bending & field tools

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TurboTool®

Troubleshoot, repair, and service Danfoss Turbocor® compressors

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Resistor value calculator

Find the resistor value from the color code and vice versa

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Southwire Voltage Drop

Southwire Voltage Drop determines proper wire size for an electrical circuit.

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Ohm's Law Calculator

Calculate V, I, R, P

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ELECTROtools

Tabulations and formulae App for electricians, electronic engineers etc

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Ohm's Law

Common calculations of electronics

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