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Super Simple FM Transmitter

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FM transmitters can be complicated to build, but not this one — it's about the easiest you can possibly make. And though the science of radio is well understood, there's a magical, emotional quality about it that we don't often stop to appreciate. Building your own radio receiver — or... Read more »

License Plate Guitar

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Continuing the tradition of homemade resonator guitars, follow along as we build a License Plate Guitar. A discarded vehicle's license plate will serve as our metal resonator top. This will be mounted atop a soundbox custom-fitted for the license plate, and the build completed with a hand-wound pickup, bridge, nut,... Read more »

Glow Plug 3D Printer Extruder

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Want to upgrade or customize your 3D printer? Build this robust extruder using a handful of tools, one online parts order, and a trip to the auto-parts store. For a heater, it uses a $10 glow plug from a diesel engine — and it performs as well as commercially available... Read more »