Electronic-Toolbox 2 1.3.1 - App Store

---

About Electronic-Toolbox 2

Electronic Toolbox 2 - The classic, re‑imagined Since 2009, Electronic Toolbox has been one of the most comprehensive electronics references and toolboxes on the App Store-for professionals, students, makers, HAMs, and...

Electronic Toolbox 2 - The classic, re‑imagined Since 2009, Electronic Toolbox has been one of the most comprehensive electronics references and toolboxes on the App Store-for professionals, students, makers, HAMs, and hobby engineers. With Electronic Toolbox 2, a fully modernized new edition arrives: familiar in structure, up to date technologically, and consistently evolved. # The best and most complete electronics app-now for iPhone, iPad & Mac Over 70 tools, tables, and references-from “A” like ASCII table to “Z” like Zener diode calculation: Everything you need in the lab, workshop, or lecture hall, in one place. . Universal app: One purchase-three platforms (iPhone, iPad, Mac) . iCloud sync: All settings and favorites automatically on all devices . Multi‑window support: Use multiple tools in parallel-ideal for comparisons . PDF export: Save, document, or share results . Pinned tools: Keep important tools always at hand . Interactive tools: New visualizations, e.g., in the Battery Charge tool . Modern UI with Dark Mode: Redesigned, clearly structured, and easy to read # Proven foundation, familiar workflow Electronic Toolbox 2 stays true to its heritage-all known tools are included and have been carefully revised. From calculators to reference data: nothing is missing, much is better. Examples: . Resistor color code and coil calculator . NE555 and heatsink calculation . Conversion and unit tools (HEX, AWG, frequency, and more) . Parametric component search with datasheets . Tables for batteries, drill sizes, IC pinouts, packages, and more . References for boards like Raspberry Pi, Arduino, BeagleBone, Nano Pi ... . Global search across all tools . Fully usable offline . No ads, no in‑app purchases # Continuously improved-since 2009 Electronic Toolbox has been maintained and improved with passion for over a decade. With version 2, we carry this legacy forward-on a new technical foundation for the years ahead. Feedback from the community remains central: every suggestion helps make the toolbox even better. # Gentle transition The original Electronic‑Toolbox Pro remains fully usable-existing workflows are not interrupted. Existing customers can switch to the new version via a discounted bundle. Features like the Circuit Editor or Projects will initially remain exclusive to Electronic‑Toolbox Pro and are not yet included in this new edition. # From the developer Jan Roskosch built Electronic Toolbox 2 together with his father Marcus Roskosch, the developer of the original app. A modern realization of a classic-with the same passion for electronics, precision, and quality. # At a glance . Completely new, modern interface . All known tools from the original app included . Universal app for iPhone, iPad, and Mac . iCloud synchronization . PDF export & multi‑window support . Fully usable offline . No ads, no in‑app purchases ----- Electronic Toolbox 2-the future of the electronic toolbox. Continued with passion. Built for you.

Version History • Air coil calculation fixes - Fixed wire diameter scaling, DC resistance formula, and inductance unit conversion for accurate results. • MC34063A tool improved - The DC-DC converter now shows detailed error messages with operating limits and validates peak current before discarding results. • Karnaugh Map expression fix - Simplified expressions are no longer clipped and can be copied as plain text. • Number converter fix - Decimal inputs now correctly produce float values with positive exponents. • Color tool: RGB & HSL percentages - Added RGB and HSL percentage display formats for iCircuit compatibility. Fixed incorrect percent sign on H in the HSL system. Thanks for your great support and feedback which helps to further improve this App. Please use the CONTACT DEVELOPER feature inside the App to report any issue so it can be fixed real quick. Jan 1.3.1 Apr 4 • Full Spanish localization - Electronic Toolbox is now fully available in Spanish. All tools, descriptions, and interface elements have been translated for Spanish-speaking users. • Seeeduino Xiao boards added - The Arduino Resource Tool now includes the Seeeduino Xiao board family with full pinout details and specifications. • Toroid calculation fixes - Fixed incorrect results in the Toroid coil calculations, ensuring accurate inductance and winding values. Thanks for your great support and feedback which helps to further improve this App. Please use the CONTACT DEVELOPER feature inside the App to report any issue so it can be fixed real quick. Jan 1.3.0 Apr 1 • New DC‑DC Converter & enhanced calculation tools — Added a DC‑DC Converter tool for the MC34063A. Updated calculators: LM2576 added to the Voltage Regulator, time‑constant calculation added to Filter, and loopstick (ferrite rod) coil support. • Smarter parameter gestures & improved navigation — Improved input/result parameter handling across calculators: swipe right to toggle a parameter's role (input/result) and swipe left to lock or unlock a parameter as input. • Diodes tool — Added visual symbols for different diode families to make identification and selection faster in the component browser. • Resource tools & glossary — Resource tools with glossary content now expose their sections directly in the glossary list for faster navigation and discovery. • Flexible export (HTML & TXT) with custom fields — Export calculation results as HTML or plain TXT. New export controls let you include or exclude specific data fields so exported reports contain exactly what you need. Thanks for your great support and feedback which helps to further improve this App. Please use the CONTACT DEVELOPER feature inside the App to report any issue so it can be fixed real quick. Jan 1.2.0 Mar 5 • New Bourns 3296 Tool - Comprehensive database featuring 342 multiturn trimmer potentiometers with detailed electrical specifications, temperature ratings, and advanced filtering capabilities • Completed Tube Database - Added missing specifications and completed data coverage for vacuum tube components, ensuring comprehensive information for all available tube types • Fixed TLS Connection Errors - Resolved certificate validation issues that prevented datasheets and external links from opening properly, ensuring reliable access to documentation across the app Thanks for your great support and feedback which helps to further improve this App. Please use the CONTACT DEVELOPER feature inside the App to report any issue so it can be fixed real quick. Jan 1.1.0 Jan 27 Fixed an issue where pink noise and white noise couldn't be generated inside the Tone Generator Tool 1.0.3 12/14/2025 • New Atmel Tool: Comprehensive Atmel microcontroller resources with detailed specifications including memory, pins, communication interfaces, analog features, and advanced capabilities. • Fixed iPhone Component Details Display: Resolved an issue where component item details weren't properly displayed on iPhone devices. All component information now shows correctly across all device sizes • Enhanced Readability and Dark Mode: Significantly improved text readability and visual contrast throughout the app, with special attention to Dark Mode optimization for better user experience during extended use • Stability Improvements and Bug Fixes: Various stability enhancements and minor bug fixes to ensure smooth operation across all features and device configurations Thanks for your great support and feedback which helps to further improve this App. Please use the CONTACT DEVELOPER feature inside the App to report any issue so it can be fixed real quick. Jan 1.0.2 12/07/2025 Some important bug fixes and improvements: - Fixed a crash inside Resource Tools on iPhone - Added missing Pinout information inside Sockets Tool - other minor improvements Thanks for your great support and feedback which helps to further improve this App. Please use the CONTACT DEVELOPER feature inside the App to report any issue so it can be fixed real quick. Jan 1.0.1 11/21/2025 1.0.0 11/18/2025

---

Previous Versions

Here you can find the changelog of Electronic-Toolbox 2 since it was posted on our website on 2026-01-25 03:04:19. The latest version is 1.3.1 and it was updated on 2026-06-20 09:24:19. See below the changes in each version.

---

Related Apps

Here you can find apps that are similar with Electronic-Toolbox 2.

---

Disclaimer