). He's finally getting his own CD player and I wanted him to build a small amp and speakers. It would be easy to use a pair of lm386's, but I want him to use discreet components. Does anyone have a schematic for a simple class AB amp using off the shelf transistors? Maybe 2n3904/06's for the first stage and 2n2222's for the output or similar? It'd be nice to use a dual ganged volume control and separate bass & treble - dual ganged also. I'd like to be able to walk into Rat Shack and dig through their drawers for the parts. Anywhere from 1 to 5 watts is fine for output power. Of course decent fidelity would be a prerequisite, though real hifi would be a plus.<p> Remember, this is a project for a 10 year old, and should still be fairly simple / straightforward built with point to point wiring - no more testing needed than simple voltage measurements. I think he would be proud to be able to do this, as he has shown interest in building "stuff" with my old 150 in 1 project kit. Lord knows his classmates aren't into the hands on aspect of electronics, only the end user side.<p>Thanks,CeaSaR
I did like their 20 watt SMT amp - looks REALLY cool! I still want discreet - it looks like you really did something instead of just "connecting the dots/pins" so to speak. Yes all those skills are necessary, and I am more than willing to help him whenever needed.<p>3. LED's are cool, so are robots, of which he has a few (an i-CYBOT being his fav. - bought it with his own money!). He picked up an electric "spider" at the school's book fair a while back and built it himself, only to find a faulty solder joint on the switch from the factory. Other than that it walks great.<p>To recap, thanks so far on the input, but I still would like to see my original request fulfilled at some point.<p>BTW, did you ever see the difference between an older solid state stereo and a new one. I believe the older circuit boards were more artistic than the newer jam-packed boards of micro miniaturization. Just my observance.<p>Thanks again,
)<p>--Joey