LM317T Voltage Regulator with Pass Transistor

4 Computer case Fans, 3amp Voltage Regulator (12v down to 5v), 12v Power Supply, 50amp Bosch 4 Pin Relay, 18 Gauge Wire, Thermo- sensor for Case Fans, 4 Pin Molex Connector, and a Female 5 Pin Relay Adapter. Remember to put fuses on in an actual car application



http://www.youtube.com/watch?v=Ob7OV7vNmQs&hl=en

Wiring of an old Ford Truck externally regulated alternator. This is from a 1985 Ford F350 with the 6.9L diesel engine.



http://www.youtube.com/watch?v=KjdaTypqj6o&hl=en

www.askthemechanic.co.uk How to test alternator and wiring



http://www.youtube.com/watch?v=UNxleA6It8c&hl=en

Modern automotive pressure sensors are of up most importance, whether gasoline or diesel engines. Did you know that a faulty HVAC or air conditioning high pressure sensor can make the engine not start? It so happens that on some vehicles (Cadillacs) the high pressure sensor is connected to the other sensor voltage reference line. So a shorted sensor will render the crank sensor inoperable. Get the scoop here on pressure sensors. They're used in injection systems, transmission, HVAC and many other systems. Presented using advanced software CG animation technology to help you understand. Part of our wiring diagram and electronic series shown here on this channel. Enjoy...



http://www.youtube.com/watch?v=_xSyhv6pWT0&hl=en

SOME NOTES: These are just a few tips I found as I designed the circuit for the car. I hope it saves people some of the headache I had to go through. -Voltage Regulators [5v adjustable = LM318C] [12v adjustable = LM317C] if you do not have them already. -- You will need two resistors for the Voltage regulators. I recommend using 200ohms for the first resistor, and a 1k potentiometer for the second one. --Here is the data sheet "www.national.com/ds/LM/LM117.pdf" -Almost all of the parts came from Radio Shack (Even battery cases)



http://www.youtube.com/watch?v=Txq7ilrYkOY&hl=en