To illustrate the circuit-bending concept, Walters does a quick demonstration using a junked Casio and the aforementioned tools, adding a photo resistor and connecting points with alligator clips.

Circuit bending is the creative process of hacking old, battery-powered toys to make unintended and new sounds.

For George Gleixner, it's a homemade battery-powered synthesizer. One that's constructed using a circuit bent a children's Hing Hon EK-001 squarewave keyboard no less. What's circuit bending you ask?

These $70 DIY synthesizers are a hobbyist's dream Moogfest's Circuit Bending Challenge invites anyone to build a synth on a shoestring budget.

They’ll go over circuit bending, self-driving cars, and a solar camera that started as a pandemic project and turned into an obsession.