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 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.