I've currently got an assignment for a basic physics class. The job to be done is that I need to create a simple circuit that holds some use in society. It doesn't need to be too complicated but I've been stuck on finding a decent website that I could get a circuit schematic/build instructions from. Some examples of the simplicity of the design needed would be: - Amplifier - A simple hand eye coordinated game (Move a metal pole through a long wire without it touching otherwise an alarm is set off) These are just 2 examples of what other people are doing. If anyone can find a website that shows how to make these simple circuits, including items needed and instructions on making I will be incredibly grateful.