Find Simple Circuit Schematics and Build Instructions

[Marghk]

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.

 

[Math Jeans]

Well, I cannot think of a website off of the top of my head (besides good ol' wikipedia), but I have an idea for the project. You could hook up numerous batteries of rising voltage in parallel with a lightbulb, and a metal piece that slides inbetween wires that connect the batteries to the light, so when it slides past, it connects a stronger battery to the light. Then, at the bottom of the metal piece put a spring for force resistance.

What this will do is the further the metal piece slides into the batteries, the brighter the light gets. Basically a scale or force meter.

 

[ranger]

You can find tons of circuit schematics here:
www.discovercircuits.com

If you have a specific question about a particular schematic or some general theory, post back in the electrical engineering forum.
You have posted what others are doing, but what are some of your thoughts?

 

[richard14]

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.

this will be a nice design for your project with this design you will kill them all
http://hades.mech.northwestern.edu/wiki/index.php/Image:555_pinout.jpg