This is an online electric circuit simulator based on Flash Player 10. Using it you can simulate simple circuits using batteries, lights, resistors, fan etc and use voltmeter, ammeter and ohm meter to measure various values of the circuit. Give it a try on the link below.
Online electric circuit simulator – [Link]
Scientific Electronics Circuit Calculator for iPad. This collection of electronics circuit calculators has been designed especially for the iPad.
Scientific Electronics Circuit Calculator for iPad - [Link]
This is a series of books covering AC, DC, Semiconductors and Digital Electronics in an easy to understand way.
Lessons In Electric Circuits – [Link]
This ebook has a collection of Switching Regulator Circuits for a variety of input and output voltages. Using this catalog you are able to easily select which type of switching regulator fits better on you needs. There are 12 basic circuit categories: Battery, Boost, Buck, Buck-Boost, Flyback, Forward, High Voltage, Multioutput, Off Line, Preregulator, Switched Capacitor and Telecom.
Switching Regulator Circuit Collection - [Link]
iCircuit is a basic circuit simulator for iPhone. It includes a basic schematic editor and circuit simulator with multimeter and oscilloscope views. You can use it to design both analog and digital circuits and watch them working in real time as real circuits do. Supported elements include resistors, capacitors, inductors, transistors, diodes, logic gates. flip-flops and much more. [via]
iCircuit: Circuit simulator for iPhone - [Link]
Circuit Board Etching, sponsored by Jameco - [Link]
Here’s an inexpensive electronic circuit that you can build to put in your Jack-o’lantern. It provides power to drive a few LEDs at night, and automatically turns them off during the daytime. It’s a simple and automatic dark-detecting circuit that you can use to for your very own photosensitive pumpkin.
Dark detecting circuit - [Link]