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Old 08-14-2006, 12:35 AM
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HowTo- Led Instrument lights. 1?

ok i found this article on how to put led lights in your gauges.

http://tech.oldsgmail.com/eint_ledclus.php


I remember in high school i used to hook up leds to the powersupply and crank the power up make em burn up.

Over time i forgot quite a bit....So what im wondering is there enough resistance in the resistor to keep an led from frying when connected to the fuse box 12v? Im thinkin about it, would be pretty dang easy. and i can get rid of my red fingernail painted bulbs(lol) for some nice colored l.e.d.'s.

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Old 08-14-2006, 01:12 AM
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Quote:
Originally Posted by 1Fast65Elky
ok i found this article on how to put led lights in your gauges.

http://tech.oldsgmail.com/eint_ledclus.php


I remember in high school i used to hook up leds to the powersupply and crank the power up make em burn up.

Over time i forgot quite a bit....So what im wondering is there enough resistance in the resistor to keep an led from frying when connected to the fuse box 12v? Im thinkin about it, would be pretty dang easy. and i can get rid of my red fingernail painted bulbs(lol) for some nice colored l.e.d.'s.
Doc here,

You now can get LARGE Super Bright L.E.D's at rat shack that are designed to operate on 12 volts..

No current limiter resistors required..AND they are just about the size of the stock lamp bucket/Well..so they are pretty easy to install..

Comes in a few colors, Blue, red, and Yellow I think, However..you probably can mix and match them to get a totally different effect..

When I used to use the Small standard L.E.D. I usually built a small 3 tab 6 volt regulator..(L.E.D. will operate fine at 6 volts..) and a single current limiter resistor for the ground buss of the L.E.D.s between 500 and 1500 Ohms ..a 3 tab regulator will limit it to an amp, and the limiter will cut it down from there as needed..

Check out the 12 volt LEDs first, I think you'll be mildly impressed..

Doc
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Old 08-14-2006, 01:22 AM
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I didnt know about those 12v leds, hopefully theyre pretty cheap too.

I dunno whats up with radio shack, when i just did a led search theyre trying to charge people over a buck a piece!! I usta get a bunch in high school i know they arent that expensive. Ill have to go down there and see in person i know they got more stuff thats not on thier page...
I seen on ebay they got a bunch of high intensity type cheap 6 cents a piece or so..

should be a cheap easy project when i get to it.
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Old 08-14-2006, 01:29 AM
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Doc here,

Well on the pricing..Like everything else that happened in High school..

When was the last time you bought a Gallon of Gas for 37 cents..?

When you could buy a NEW car for just about $2 bucks a pound..

Or the price of a meal was $9.00, not the tip...

OR you could buy a House for $25K...not $725K?

I guess L.E.D.'s are subject to Cost of living also..

Think of it this way, How much will a bulb cost you..and how many times will you replace it ? an L.E.D. will last forever..
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Old 08-14-2006, 01:53 AM
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ahhh so true lol

and yep these leds pratically burn forever. ill keep that in mind its not so bad payin a buck a piece then. But still 90cent store mark up on each is quite a bit when you want 20 or a thousand or so.

gas was 99 cents a gallon I was driving non stop, now gas is like 3.20 a gallon ouch driving? whats that? I just get in and make engine noises now.

Also, I figured out with the formula (V.S. 12v - V.L. 2v) / .02a ... i got 500. so that resistor (470) is close enough to work i guess if i do go about doin it with 2v leds.
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Old 08-14-2006, 07:05 PM
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Quote:
Originally Posted by 1Fast65Elky
ahhh so true lol


gas was 99 cents a gallon I was driving non stop, now gas is like 3.20 a gallon ouch driving? whats that? I just get in and make engine noises now.
Doc here,

When I Started Driving, Gas was 19 cents a gallon..and ya got the windows washed, oil Checked, water Fan belt and battery checked, AND a handful of S&H green stamps..

Oil was pumped from a 55 gallon tank in the service bay into a qt Bottle with a metal stem (funnel cap) that screwed on the top of the bottle..

IF YOU said: $4.00 a gallon back then, Everybody just knew you were talking about PAINTING the house again this year..

Duel Air Bag deployment could only mean code for dropping the old lady AND her mother off to shop for shoes..

Anti Locks could only mean, the door handles rusted and fell off again..

Seat belts were handy for holding the rusted out seat tracks to the floor..

The only computer that was around then was wire strung on a wood frame, with colorful beads..(Math was real important back then..)

Computers Could NEVER replace human Beings..Which by the way are The only commodity that can be reproduced by unskilled labor..

I Guess I'm Dating myself here..(tough job , but someone has to do it.. )

Doc
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Old 08-14-2006, 08:25 PM
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If you have some other things you need, like shrink tubing, solder and such you can order the leds you need from Mouser , or DigiKey . They are very reputable mail order houses that can save you quite a bit over ratshak. The also have excellent paper catalogs.

I am using some 12v leds for turn and high beam indicators in the dash of my 34 project.

Vince
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