Build an oscillator circuit 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.
Skills and concepts explored:
- Electricity and Circuitry
- Integrated Circuits
- Amplifiers
Recommended Age Group: 8th grade and up.