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Electronic Toolbox Pro

Electronic Toolbox Pro

Marcus Roskosch

Powerful electronics tools at your fingertips. The original. The go-to app.

556 Reviews 1K+
  • 88% positive reviews
556 Ratings
  1. 5
  2. 4
  3. 3
  4. 2
  5. 1

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App Description

Google Play

The *** ORIGINAL *** Electronic Toolbox Pro App

Electronic reference and calculation resource for Professionals, Hobbyists, HAMs and Students right at your fingertips!

See the online Manual at

TRY BEFORE BUY: Please download DesignSpark Toolbox from the Play Store:

DesignSpark Toolbox is a small and free subset of Electronic Toolbox.

Feature Highlights:

■ Most comprehensive and complete Electronics app available
■ Designed for Novices as well as Experts
■ Numerous individual tools from "A" like ASCII Table to "Z" like Zener Diode calculation. If something is missing, just let me know
■ Provides wide variety of simple and complex tools, such as the resistor color code conversion to the PCB Trace width tools
■ Various calculation tools available, such as the NE555 circuit calculation and the passive cooling calculator
■ Includes reference tools with millions of component specs for ICs, Transistors, FETs, Controllers with parametric searches, pinout and cross reference information, and complete datasheets
■ Provides information about Batteries, Drill sizes, Hybrid Amplifiers, Socket pinouts, package sizes and much more
■ Includes conversion tools, such as the Unit conversion tool, the HEX/Decimal/Float Tool, Frequency and AWG / SWG tools
■ Global search for terms or components across all tools
■ Comprehensive reference glossary (english only)
■ No ads or in-app purchases
■ Can be used without Internet access
■ And much more...

For further information about this App, just have a look at my website:

■ ■ or just send me an E-mail.

This App will continue to live and grow over the time. So I still look forward to all additional ideas, suggestions or even criticism so that I can continuously improve my App.

Best regards,


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Electronic Toolbox Pro

Electronic Toolbox Pro

4.6 556 Reviews