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Old 05-14-2008, 11:57 PM   #70 (permalink)
JohnnyGrey
Master EcoModder
 
Join Date: Apr 2008
Location: Earth
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Pushrod - '02 Chevrolet Cavalier
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Quote:
Did you build and design it all yourself or did you get a kit somewhere?
I designed and built it myself. A basic version is essentially an NPN transistor surrounded by the right resistors, and will run you about $12 in radioshack parts. Mine cost about $25 because of the LEDs, and dual AFR switching.
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