Circuits & Schematics - Audio - 10

Here it is, in all its magnificent glory -- the new Shuffle! We'll post updates on twitter about interesting things that we discover as we go. The box is as dainty as its contents. According to Apple, the Shuffle has a true volume of 4,326 cubic ...

Give your speakers some extra personality by making them out of a vinyl doll. Kid Robot makes the easily hackable Munny doll and I've been meaning to cut one up. The combined need for some new speakers created a happy union of doll and speaker. ...

joe The LED VU Meter was the height of late 80-s boombox technology. This instructable will build one out on the breadboard. Who doesn't like blinking lights.. You will need either the National Semiconductor LM3916 / LM3915 / LM3914 , 2 for ...

M. Batek Make a sound card is no more a complex issue. If you use great IC PCM2702 from BURR BROWN / Texas Instruments you can create a fully functional USB sound card. This sound card can be powered from USB port and has one stereo output. You ...

This circuit is for detecting any audio signal with justable noise offset. It could be used to generate a radio mute signal eg. from a PDA. The circuit is consisting of: Input impedance Signal amplifier Rectifier Justable comparator (Noise offset). ...

Have you ever thought of making your own portable speaker in a CD case? Here is how you do it. Components required 8 W speaker with 4 ohms impedance CD case ( Use the one with a zip would be good) 18 W Amplifier module (I used the Kemo #M033, you ...

Nophead Although I am fortunate enough to have a project room which is nearly 3 m by 4 m, as you can see it almost completely full of junk. The large glass fronted MDF box on the far left next to HydraRaptor is a 400 CD jukebox that I designed and ...

Tony Sambuchi I recently purchased a new cell phone and wanted to play my MP3's in my truck. My truck has the factory radio in it and did not alow me to do this. I once used a FM linker to play my MP3's but found the music quality very ...

Specifications The Tiny Audio Amplifier kit is a good choice for battery operation. It is based on LM386 IC . Power supply - 6 - 12 VDC Output power - 1 W, 8 Ohm The quiescent power drain is only 24 mW when operating from 6 VDC Self-centering ...

A homemade speaker using a plastic cup, business card, wire, magnet and some Lego blocks. I built this speaker from scratch; I was surprised of the quality of the sound. I doesn't look like a high-tech speaker but it works well. I didn't expect a ...