EFA:002 – Simple Oscillator with 40106




  • Basic Components
  • 40106 [Hex Schmitt Trigger Inverter] – We use this to create oscillators for controlling LEDs and producing annoying sounds

Tools & Skills

Some Alternative Chips

  • 555 – The 555 timer chip is also very popular for creating oscillators. It requires more parts and it’s a bit more complicated to build, but a very useful little chip to have in your toolkit.
  • 4093 – Quad 2-input Schmitt Trigger. Can be used to build oscillators in a very similar way to the 40106.

Going Further

We will continue with this chip all week and eventually we will make a simple sequencer controlled synth. LINKS FOR MORE INFORMATION COMING SOON…