Dave posted this vid along with a write-up, covering the ins-and-outs of the unbalanced diode mixer circuit – This circuit uses the small non-linear response area of a single diode to create combinations of sum and difference frequencies of two input signals (or one input signal containing multiple overtones). Radio designers use this type of […]
Guillermo Iao sent us a link to this project where he recycled a hard drive case into a bottom and a top for an Arduino-based DAC (digital analog converter) used as a preamp. Reusing Hard Disk Parts for the Case
Before people came in for Education Day at Maker Faire, I had a chance to talk with Collin Cunningham about the projects he has built and is showing in the Maker Shed.
Jesse Rutherford writes: Have you ever wanted to plug in a professional studio mic to your ipod touch/iphone? There may be a commercial solution, but I couldn’t find one. Even if there is one, I figured I could build one cheaper than a ready-made one. You could also use this for a line-in (my original […]
Joe Bower got a Vietnam-era US Army Radio Headset in an antiques/surplus store, sealed in the box, for $15. Using a dissected Molex cable and a cheap 2.5mm headset jack, he was able to get the set working with Xbox Live. Now Call of Duty has that extra note of authenticity (especially ’cause there’s extra […]
From the MAKE Flickr pool Leadtowill posted this detail shot of a rather excellent mod/conversion – This was a cassette radio. I removed the motor etc and added an input to the amp section of the circuit, mounted a spring and converted the speaker to a driver with a knife – the result is a […]
I love this gorgeous set of computer speakers, with masonitecomponents cut out on a laser cutter and veneered. And the B3N drivers he used look sweet. B3 Mini Array Computer Speakers DIY
