About Perfboard
A utility and reference for the electronics hobbyist. Contains: . resistor color band utility . resistor series calculator . resistor parallel calculator . voltage divider . capacitor code tool . capacitor tolerance...
A utility and reference for the electronics hobbyist. Contains: . resistor color band utility . resistor series calculator . resistor parallel calculator . voltage divider . capacitor code tool . capacitor tolerance reference . capacitor series calculator . capacitor parallel calculator . L.E.D. voltage drop reference . L.E.D. limiting resistor calculator . Ohm's law calculator (with unique "slide rule mode") . ASCII table. Retina display and iPhone 5 & 6 support. A beautiful user interface.
Version History This update from Apple will improve the functionality of this app. No new features are included. General bug fixes. 2.0.4 11/25/2015 Added "power" (Watts) to Ohm's Law calculator. Fixed a potential crash in the Ohm's Law calculator. New "flat style" icon. 2.0.3 06/06/2015 • Address text layout issues with iOS7 2.0.2 05/14/2014 Fixed Professional suite. 2.0.1 04/01/2013 An Ohm's Law calculator with a unique "slide rule mode" for entering the values. A suite of new Professional features include a voltage divider and series and parallel calculators for both resistors and capacitors. 2.0.0 03/25/2013 iPhone 5 support. 1.1.0 02/05/2013 Added voltage drop data for common L.E.D.'s. 1.0.1 09/29/2011 1.0 09/22/2011
Previous Versions
Here you can find the changelog of Perfboard since it was posted on our website on 2016-10-03 21:30:09.
The latest version is 2.0.4 and it was updated on 2026-06-10 17:00:10. See below the changes in each version.
Perfboard version 2.0.4
Updated At: 2026-06-10
Changes: Version History This update from Apple will improve the functionality of this app. No new features are included.
General bug fixes. 2.0.4 11/25/2015 Added "power" (Watts) to Ohm's Law calculator.
Fixed a potential crash in the Ohm's Law calculator.
New "flat style" icon. 2.0.3 06/06/2015 • Address text layout issues with iOS7 2.0.2 05/14/2014 Fixed Professional suite. 2.0.1 04/01/2013 An Ohm's Law calculator with a unique "slide rule mode" for entering the values. A suite of new Professional features include a voltage divider and series and parallel calculators for both resistors and capacitors. 2.0.0 03/25/2013 iPhone 5 support. 1.1.0 02/05/2013 Added voltage drop data for common L.E.D.'s. 1.0.1 09/29/2011 1.0 09/22/2011
Perfboard version 2.0.4
Updated At: 2015-11-25
Changes: This app has been updated by Apple to display the Apple Watch app icon.
General bug fixes.
Perfboard version 2.0.4
Updated At: 2015-11-25
Changes: Nov 25, 2015 Version 2.0.4
This app has been updated by Apple to display the Apple Watch app icon.
General bug fixes.
Perfboard version 2.0.4
Updated At: 2015-11-25
Changes: Nov 25, 2015 Version 2.0.4
General bug fixes.
Perfboard version 2.0.4
Updated At: 2015-11-25
Changes: Nov 25, 2015 Version 2.0.4
This app has been updated by Apple to use the latest Apple signing certificate.
General bug fixes.
Perfboard version 2.0.4
Updated At: 2011-09-23
Perfboard version 2.0.4
Updated At: 1970-01-01
Changes: 25 нояб. 2015 г. Version 2.0.4
This app has been updated by Apple to use the latest Apple signing certificate.
General bug fixes.
Perfboard version 2.0.4
Updated At: 1970-01-01
Changes: 2015年11月25日 Version 2.0.4
General bug fixes.
Disclaimer
Official App Store Link
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