Projects
- 3D Optics
- 9V Battery Snap Do-it-yourself
- Audio Equalizer
- Binary Beads
- Cartesian Diver
- CD Spectrometer
- Circuit Game
- DC Motor
- Electric Train
- Faraday Flashlight
- Homopolar Motor
- Infrared Heart Rate Monitor
- Jeopardy game
- Jumping Jack
- LED Display
- LED Flashlight
- Liquid Crystal Display
- Magic Wand
- Op Amp Oscillator
- Paper Planes
- Smart Lighting
- Solar Cooker
- Speaker
- Vacuum Fluorescent Displays
- Water Filtration
- Wireless Energy Transfer
Op Amp Oscillator
Build an oscillator crcuit with an operational amplifier!
This simple circuit illustrates several important circuit concepts. The light will blink at a frequency determined by the values of the resistors and capacitors. You could also observe the oscillation with an oscilloscope if you have one, but an LED is cheaper.
Detailed Instructions for building the Op Amp Oscillator (link is broken now but we'll update with instructions soon)