Added 1981-08-30 01:42:39
App Freshness



Emir F Samsuddin
Post Date:
2021-10-19 16:01:34

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A must-have utility for electronics enthusiasts – whether you are a student, engineer, teacher, DIY-er, technician, or a designer. It is easy to use and extremely handy when you are working on your bench, without access to your personal computer. Get results, fast!

Based on your reviews, I have updated the app to make your usage better.

1. Improved resistor band color selection (for bigger fingers)

2. Added ability to switch between E or V for Voltage Symbol (settings are saved to your device).

3. Ability to switch between Metric or US Units system (settings are saved to your device).

1. Revamped user interface and graphics.

2. TWO BONUS UTILITIES! (as promised):-

* A simple flashlight (with 4 colors – white,red,green,blue). Useful for video color referencing. Starts always with a white light. The light is particularly useful if you are soldering away in a dark place or cannot find that component that just dropped from the table.

* Tone generator – generate tone/test signals from your iPhone. Choose a frequency and it will play it in a loop. Also available is the Sweep function where the tone is produced for the whole range of frequencies – from 20Hz to 20kHz (useful to measure frequency response of a system). And yes, switch on that 20kHz to rid off insects if you are soldering in the woods! Also available a White and Pink noise generator.

*Added More Circuit Calculators:

– Calculate and design your RC filters – High pass/Low pass/Band pass.

-Calculate and design your Regulators’/Power Transistors’ power dissipation and calculate its required heat sink sizes.

-Calculate and design your Inverting and Non-inverting Operational Amplifiers.

* 4,5,6-band resistor color codes translation from value entered and vice versa.

* For the 4-band tool, it also displays equivalent value of Ceramic Capacitors, Electrolytic Capacitors, Inductors and chip resistors. Also available a tool to translate Electrolytic capacitor’s voltage rating codes.

* Ability to detect if the resistor value chosen is of EIA Standards or not.

* If value entered is not found, the nearest value will be shown.

* Shows the color codes in words, to prevent misinterpretation of colors.

*Ohm’s Law, Charge and Capacitance, Transistor Gain and Time Constant equation calculator.

*Beautiful graphics.

*Circuit Calculators:

-Calculate the total value for parallel R or L, and series C.

-Calculate and design your voltage divider circuit.

-Calculate and design your zener voltage reference circuit.

-Calculate and design your LED circuit.


  • iTronixPal Screenshot
  • iTronixPal Screenshot

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