Here’s something different - Andrew Benson’s battery-powered wrist synth, aka the Whisper Synth: Here’s another video of the whisper synth in action. I tweaked the circuit a little bit to make the sound a little louder, and am using a 9v battery now with a 7805 regulator to power it. The little lithium coin cells didn’t seem to have enough power to run the sound. The carrier frequency pot appears to have a little bit of a shorting problem but I kinda like the unpredictability. via CDM

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