Dusting off the old Heathkit to play around with some oscillators based on the CD 40106 Hex Inverter IC. Take an inverter, add a resistor and a capacitor and you have an oscillator :)

For more on the LDR/LED coupling (vactrol) please watch this:
   • SDIYClass#2  The 3 dollar LoPass Gat...  

And if you need a buffer for that trianguloid wave, watch these:
   • SDIY Class #3  The Deadbug Buffer : ...  
   • SDIY Class #9  Intro to OpAmps  

If you'd like to help me keep this up, join my Patreon!
  / quincas  

And to know more about my work as composer check out my website!
https://www.quincasmoreira.com/

Video and music produced and directed by Quincas
featuring some of my tracks from the Youtube Audio Library:
https://www.youtube.com/audiolibrary/...

Stay Noisy!