Duel OSC, Triangle Wave Synth
This box contains two triangle wave oscillators with controllable pitch (the big knobs) and drive control for each oscillator creating (almost) square waves. Balance control is the middle knob at the bottom. Powered by 9v DC adapter or battery. I started with the circuit from this article on hackaday and cobbled it together on DIYLC. Constructed on …perfboard.
I have used this guy for a few live performances and now I cant live without him. Heres the (very inefficient) layout, for those interested.
Download .DIY file here (right click “save as”)