Multifunctional engineering calculations of electronic circuits and components

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Inductive Reactance Calculator
This calculator allows you to quickly determine inductive reactance. Inductive reactance depends on the frequency of the applied voltage and the inductance.

Inductor Color Code Calculator
A helpful tool for reading axial inductor color code values for a 3- and 4-band inductor. This tool allows you to determine inductance by inductor color coding and to determine inductor color coding by inductance. It displays Rated inductance and Inductor tolerance all in one easy to read chart.

LC Circuit Resonant Frequency Calculator
LC circuit resonant frequency calculator is an easy-to-use tool to quickly determine the resonant frequency of an LC circuit (also called a resonant circuit) which contains only an inductor and a capacitor, in parallel or series.

LM317, LM350, LM338 voltage regulator or current limiter calculator
This calculator is an online tool to quickly determine the resistor value required to use the LM317 / LM350 / LM338 as a voltage regulator circuit or current limiter circuit.

Low Pass Filter Calculator
Low pass filter calculator is an easy-to-use tool to quickly determine the cutoff frequency of a low pass passive filter. This tool allows you to choose filter circuit: RC filter or RL filter.

Ohm's Law Calculator
Ohm's law calculator is an easy-to-use online tool to help you find the relationships between electric current (I), voltage (V) and resistance (R) across a given conductor. This tool allows you to calculate power (P) as well.

Operational Amplifier Gain Calculator
Operational amplifier gain calculator is an online engineering tool to help you determine the voltage gain of an operational amplifier. This calculator supports both inverting and non-inverting operational amplifier circuits. This tool also displays recommended resistor value as well as resistor color coding.

Pi Attenuator, T Attenuator and bridged T Attenuator Calculator
This online calculator allows you to quickly determine the value of resistors in a Pi attenuator, T attenuator or bridged T attenuator circuit. Just enter the desired attenuation (in dB) and impedance (Z) to calculate the needed resistors (R1 and R2) values.

Resistor Color Code Calculator
A helpful tool for reading resistor color code values for a 4- and 5-band resistor. This tool allows you to determine resistance by resistor color coding and to determine resistor color coding by resistance. It displays Rated resistance, Resistor tolerance, Resistor length and Resistor power all in one easy to read chart.

RGB LED Resistor Calculator
This tool allows you to determine which resistors you should use when you have a RGB LED. It displays resistor value, recommended resistor wattage as well as resistor color coding.


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09/29/1901
date of birth
Fermi, Enrico

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