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Seafoid offers a wide variety of electronics-related calculation tasks, for example:
  • Getting resistor values from their color bands
  • Calculating LED dropping resistors
  • Ohm's Law
  • Heat sink thermal resistance calculation
  • Inductances of air-cored coils
  • NE555 circuit calculation
  • Vacuum Tube Identification

What's New

Version 3.1:
  • Fixed a bug that caused Seafoid to display wrong power values in the LED dropping resistor calculation.


OS X 10.5 or later

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Current Version (3.x)


Downloads 8,134
Version Downloads 2,387
License Free
Date 05 Nov 2009
Platform OS X / PPC 32 / Intel 32
Price Free