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Search results: 192   Output: 51-60
  1. 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 ...
    Circuits » Audio · Light » National Semiconductor » LM3914, LM3915, LM3916
    01-09-2008
  2. 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 ...
    07-05-2008
  3. 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). ...
    31-03-2008
  4. 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 ...
    22-03-2008
  5. 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 ...
    04-03-2008
  6. 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 poor. This ...
    18-02-2008
  7. Rajkumar Sharma 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 ...
    Circuits » Audio » LM386
    06-02-2008
  8. 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 ...
    24-12-2007
  9. On February 2006, I puchased my first LEGO Mindstorms. On January 2007, I purchased my LEGO Mindstorms NTX, so I started to create some proyects with it. I found NTX makes easier to create projects using fewer parts. Here is my first NTX project: ...
    21-11-2007
  10. It seems like everywhere you go, someone’s cell phone is playing a personalized ringtone. Whether annoying or clever, it’s your call, but inside your home, it’s still the domain of the boring “ding-dong.” Not for long, ...
    20-11-2007
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