LM317T Voltage Regulator with Pass Transistor

A quick first try of showing my JCM800. 50Watt 2204 originally built from a Ceriatone Kit. It has a Variable Voltage Regulator installed for fixed biased amps. Sorry, it is just the regular digital camera built in mic, so it seems to make all playing sound the same volume. Sorry about the guitar playing too; totally not paying attention to that aspect of it. I'm no Phil X...



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How To Make Cordless Drill To Crank Charger See how you can use a cordless drill as a crank charger to recharge batteries, even alkalines! Step 1: A Clever Idea It's the holiday season and everybody knows what that means: lots of dead batteries. But, don't throw them out, recharge them. Here's how. A cordless drill can also be used as a generator. Connecting the battery leads inside to a volt meter, and simply turning it, will show this. Step 2: Obtain The Parts All we need now is a voltage regulator. You'll find the perfect part inside a cheap, outdoor solar-powered garden lamp. The battery holder inside has a circuit board attached, which charges the battery from the solar panel. This is exactly what we need. The rest of the parts cost about $3.00 total, and include a C and D cell holder, some alligator clips, and a length of wire. Step 3: Attach The Wire To The Circuit Board Although I prefer to sauter them, you can attach the alligator clips by stripping about a quarter-inch of wire, and using a pair of pliers to firmly clamp them into place. Now, attach or sauter the other end of the wires to the red and black leads on the circuit board. Step 4: Make The Hand Crank I made a hand crank from bending a metal bar that attaches to the drill just like a regular bit. Now, the cordless drill will work just like a hand crank generator. Attach the alligator clips to the battery post and we're ready for testing. Step 5: Test The Machine Let's start with a completely dead NiCad ...



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DIY automatic light regulatorTwilight switches turn on the lights depending on the intensity of ambient light. A twilight switch can regulate illumination depending on the brightness of external light.Automatic built-in regulators maintain a specified illumination level depending on the changes in external lighting. Thus they smoothly adjust specified illumination. In this way lighting can be controlled in the streets, houses, staircases, land estates, shop windows, advertisement signs, and duty rooms of industrial facilities.Automatic light regulators save a lot of electric power. The main category of twilight switches has a photocell in its design.A photocell measures illumination. So depending on the determined value the device turns electric circuit on or off. The popular summer house sensors on solar batteries also have photocells in their designs. To be more specific, they use sensitive phototransistors or photodiodes which turn on the charging mode during the day and switch on LEDs in the nighttime.The operating principle of such device can be shown through the example of two simple assemblies which use a phototransistor and a key element on the basis of bipolar transistors. The devices come without additional up-invertors. They are powered from galvanic cells and are mounted onto small sections of the printed circuit board which facilitates assembly.The number of power elements depends exclusively on the load, ie on the number and capacity of LEDs. One of the ...



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Step by step instructions got building an adjustable voltage regulator using the lm 317



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New xtreme CHARGER v6.9, designed for easy and simple to use with cigarette lighter socket in the car, for Fuel Saving, Smoother Engine, Voltage Stabilizer for the car electrical system. How does it work? We try to share the information. Someday, all vehicles shall have this for standard. Nothing else matter much nowaday besides earthquakes and cyclones, and Crazy Oil Prices! Despite meeting with OPEC for more oil production, prices per barrel actually gone higher! Wonder who's laughing to the bank.



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Gangster Choppers isn't just another pretty name company. Gangster Choppers knows where choppers came from, our parents and grandparents were chopping before us and we are proud to carry on the tradition. We aren't just bolting together catalog bikes like a bunch of companies in the past decade have popped up, chopper this and chopper that. John Dodson isn't about compromise, he builds what he wants and holds true to his origins. Look around at the choppers that have rolled out of the shop over the past 11 years. Both national and international magazine features along with TV coverage. If you're after a chopper with the soul, heritage, and accurate look of a chopper...then you've come to the right place friend. THE BIO OF JOHN DODSON My first bike was a 1975 Harley Davidson XLCH that needed much tender care and more than that it needed my money! I swear every time I rode it something broke or fell off. I got real good real quick at fixing it. One weekend I would ride and the generator would quit, I would fix the brushes just in time for another weekend. Then the starter would quit, fix that on Monday and it would start all over again. I went through ignition coils, voltage regulator, starter solenoid, generator, starter motor, 2 carburetor rebuilds, numerous oil leaks; you name it I dealt with it. That was 20 years ago and I have always been elbow deep in grease. In 1999 I hung a name on the shop calling it Gangster Choppers, the first dozen tee shirts were printed and a ...



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A quick little buck converter that I rigged up. I connected the MOSFET directly to the output of my TL494 so the fall time suffers but it is not too bad. 0-12V output voltage, maybe 1 ampere max.



http://www.youtube.com/watch?v=26T9pEPZo1s&hl=en