Drawdio: "a pencil that let you draw audio" - www.drawdio.com
this is my first test: I used the original schematics from the drawdio website, with a 9V battery and a 555 IC. I used standard cooking aluminum foil to get the contact between the thumbtack, the pencil and the hand, but i have a low frequency buzz/noise that i must get rid of.
The audio out was connected to a jack and to a VAMP with FX: i just replaced the speaker with a mini-jack.
www.alchemystudio.it
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