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Old 05-09-2004, 04:23 AM
bobterry99 bobterry99 is offline
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Join Date: May 2001
Location: Las Vegas, Atlanta
Posts: 670
If you don't find a source of twelve volts which switches on with the ignition off, then you might consider the circuit below. The transistor is a PNP bipolar-type and the value of the value of the resistor can be about 10K to 50K. All parts can be readily had from Radio Shack for two or three bucks.
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300SL Security System LED Add-on-led-ckt2.jpg  

Last edited by bobterry99; 05-09-2004 at 05:14 AM.
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