sound generator
there’s a few stories behind this thing. suffice to say it was wired worng, looked like this:
and sounded like this
and this
an earlier attempt, also wired wrong, looked like this:
and sounded like this
circuit was an attempt to build the design from here: http://www.musicfromouterspace.com/analogsynth/YOUR_FIRST_SYNTH/YOUR_FIRST_SYNTH.html
but i got the pin numbers of the ic wrong. hopefully i can recreate what i did with that in the future (not sure if the picture really tells the story at that point or not) ... i jotted some notes down but who know where those might be.