Joe Groele wanted to create some unique electric guitar sounds. His inspiration was William Duddell’s “singing arc” from the early 1900s. Duddell created sound by varying air pressure through an electric arc. Unlike the plasma loudspeakers that evolved from Duddell’s design -- known for their clarity and purity of tone -- Joe wanted a sound with extreme distortion.
First, he built a prototype circuit using a 555-timer chip to test a driver circuit to create an arc -- using an automotive ignition coil. Next, he added an audio amplifier using a LM386 chip, which amplifies the signal from a guitar into a square wave. The sound frequency generated by the electric arc corresponds to the note being played on the guitar. Joe named his amplifier the FaceMelter3000.
The editors of Design News have handpicked your favorite Gadget Freak cases from over the years, and brought them together in a dynamic digital edition. Click here to download and check out; not only the best gadgets, but their videos too!
The editors of Design News have handpicked your favorite Gadget Freak cases from over the years, bringing them together in a dynamic digital edition, complete with videos, which you can view here!
Sure, this should be a great ozone generator, but besides that it ought to be possible to listen to it from miles away on any AM receiver. Definitely my kind of project!
I hope you are kidding. Ozone in the upper atmosphere blocks UV. However, Ozone is poisonous, corrodes metal (very bad for electronics!) and degrades plastics. An ozone generator in the home is not exactly an ecological triumph.
Now this is cool. You have to watch the video to get the full flavor of what Joe has accomplished here. This is quite different from Hendrix smashing at guitar into the amp (which was great in its way). Joe's got something way more techy going here. Nice going, Joe.
From Dell / Intel® New Paradigms in Design Work Scott Hamilton, vertical market strategist for Dell Precision workstations, 5/2/2013 5
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A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is
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