LM317T Voltage Regulator with Pass Transistor

A simple Circuit using 2X lm3914, a cheap transistor and a relay... and a few other bits. you can set the max charge voltage with a small preset potentiometer, when the set voltage has been reached the lm3914 Lights LED 18 (the first red one) and also sends a small base current to the transistor, which then powers the relay coil and turns the ZVS off. when the voltage drops below the set voltage or the capacitor is discharged the power to the relay coil stops and the charging begins again automatically :-D.The transformer is a core stripped from a flyback transformer, with a hand-wound primary and secondary, approx 4.5+4.5 primary turns and roughly 100 turns on the secondary) oh... and before anyone says anything.... (the ZVS is on the Normally Closed contact on the relay) the whole unit/ module/ circuit draws between 3-6A @ 12VDC. Thanks for watching!



http://www.youtube.com/watch?v=T8MlrguF7Kg&hl=en

Yes, you could just install the 3s lipo and run your x9303. However the voltage will be about 1.5 volts higher than the stock setup (fully charged) and you run the risk of over heating the internal voltage regulator and having the transmitter shut down unexpectantly. (wow would that suck!) To solve this problem, I copied what others have done, I installed two diodes in series with the battery. Each diode drops 0.7 volts, for a total battery voltage reduction of 1.4v. End result is a fully charge lipo @ 12.6 volts appears to the transmitter as as 11.2 volts. This is equivalent to a fully charged 8 cell NiMH battery at 1.4 volts per cell.



http://www.youtube.com/watch?v=O8jMk1O1Cug&hl=en

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http://www.youtube.com/watch?v=Bptdrj7I9sQ&hl=en

I've been seeing these little IHC LA and LB engines running car alternators at engine shows this year. Usually they are chugging away charging up the camper battery. I decided to build one for myself -but I made mine electric starting! The starter generator came from an old garden tractor. I made a few simple brackets and here you see it. This video is the "maiden voyage" of the thing, so I didn't really know what to expect. Since this video was taken I have adjusted the mechanical voltage regulator to throw a little more charge than 0.8 amps. This engine was used to pump an oil well for most of its life.



http://www.youtube.com/watch?v=Zm64yjd-e38&hl=en

Installed my new generator pulley tightener and cranked it up one more time. This time, with the different generator and voltage regulator, the ammeter looks much better.



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

How to install a hub kit on your wind generator



http://www.youtube.com/watch?v=PgtrxIAikh0&hl=en

Very Low Price Being sold by an Honest US Army Soldier. This is not my car; I am finding a buyer for a friend. Great weekend car for taking the wife on a drive, or to cruise to your local car show and share it with others. Cool Shop Car to advertise your business. This is a classic car not a muscle car but you could easily turn it into one. The car is in Powder Springs, Georgia 30127. Easy to get to off of Interstate 20. Very close to Tennessee, Alabama, Florida North and South Carolina. Fly in drive home, 40 minutes from Atlanta International Airport. V8 Engine 260 cubic inch bored out .030 Matching Numbers VIN 3F43F277978 Miles 63502 (video shows mileage) Original 2-Barrel Carburetor Professionally Rebuilt Three on the tree Engine has been bored out .030 and professionally overhauled with: New pistons & rings All new bearings New camshaft & lifters New value springs, guides, valves and rocker arms. New oil pump Timing gears and chain Water pump Thermostats Hoses & belts Plugs wires, plugs, cap, rotor, and condenser New radiator Clutch & pressure plate and throw-out bearing New master cylinder Brake lines and hardware New brake shoes Voltage regulator Generator has been rebuilt. All new shocks, the rear are with built in springs All new tie rod ends, drag links and a new idler arm and bushings, plus a drag link All new tires P205 / 75 R14 2000 miles on them All new Cragar rims New red interior, with new carpeting, headliner, seats and door panels. The interior is new and ...



http://www.youtube.com/watch?v=ZSuvI3dXznM&hl=en