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Old 06-03-2004, 04:09 PM   #1
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Default resistors

correct me if im wrong, but arent resistors wired into the negative side of a power source when changing 12v to 2v
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Old 06-03-2004, 04:13 PM   #2
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Five years of engineering, and I was never told if that mattered. I don't see why it would.
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Old 06-03-2004, 04:14 PM   #3
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ok...gimme a sec to post a pic and i got a question then
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Old 06-03-2004, 04:24 PM   #4
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one...two...three...four...
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Old 06-03-2004, 04:26 PM   #5
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editing in paint right now...keep holding
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Old 06-03-2004, 04:33 PM   #6
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basically i want to wire blue LED'* into this board, but its 12v. where do i need to put the resistor, and what kind of resistance am i gonna need?

(EDIT)the lights on the bottom of the first picture are already led'* with resistors in them, they are getting about 1.87v. the other 3 (1 missing for the pic) are normal 12v bulbs with orange covers on them. that is where i am having my troubles

hopefully these pics will help you understand

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Old 06-03-2004, 04:40 PM   #7
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Those are in parallel, right? Measure the resistance of the led you're putting in. Get a resistor for each one that is five times the resistance of the bulb.

Where are those pieces from? Dash or console?

EDIT: must be seat controls
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Old 06-03-2004, 04:45 PM   #8
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You're gonna have to find a way to squeeze a resistor onto one of the leads of each bulb. Or rewire them all in series, with a resistor of equal resistance to the bulbs or an extra bulb.
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Old 06-03-2004, 04:48 PM   #9
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OK, just saw your edit. How about blue bulb covers? The series suggestion won't work. Another series suggestion, the three in series, with one resistor equal to the resistance of the three bulbs together.
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Old 06-03-2004, 04:53 PM   #10
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Oh yeah, to put a resistor on each bulb, look at the colored stripes on the resistors for the bottom bulbs. That is code for the resistance. You'll need resistors with that color code on it. Somewhere, I have a key for the code, but would take me forever to find it. Let'* see what Google turns up.
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