Building a Noid Light
Thread Starter
Burning Brakes
Joined: May 2010
Posts: 941
Likes: 10
Building a Noid Light
I picked a up 2 High Intensity White LED's and a pack of 680 ohm resistors.
I was reading in the archives that to build a Noid Light, take a LED and put a 680 ohm resistor in series with the LED.
Ok, that does not tell much. LED's have 2 leads, one short, one longer. Which lead gets the 680 ohm resistor .
How do you tell the correct polarity of the LED/Resistor when plugging it into the Injector connector.
Thanks
8Valve
I was reading in the archives that to build a Noid Light, take a LED and put a 680 ohm resistor in series with the LED.
Ok, that does not tell much. LED's have 2 leads, one short, one longer. Which lead gets the 680 ohm resistor .
How do you tell the correct polarity of the LED/Resistor when plugging it into the Injector connector.
Thanks
8Valve
Melting Slicks
Joined: Mar 2004
Posts: 2,141
Likes: 2
From: Pittsburgh Pa
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
It doesn't make any differerence at all which lead you connect the 680 ohm resistor to. On LED's, the short lead is the cathode and this lead should go to the injector socket pin with no voltage on it and the other lead should go to the injector socket pin that has 12v on it.
Last edited by jfb; Sep 24, 2010 at 12:45 AM.
Le Mans Master
Joined: Jan 2003
Posts: 5,858
Likes: 7
From: Santa Maria CA
$25 at Autozone. You can either rent it or buy it.
Here
Harbor freight has an even better set with more adapters plus IAC testers. I think it's $30-$40.
To me it isn't even worth the time trying to make one.
http://www.harborfreightusa.com/usa/...o?itemid=97959
Le Mans Master
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
$25 at Autozone. You can either rent it or buy it.
Here
Harbor freight has an even better set with more adapters plus IAC testers. I think it's $30-$40.
To me it isn't even worth the time trying to make one.
http://www.harborfreightusa.com/usa/...o?itemid=97959
I bought the HF kit and it has everything you could ask for in a noid set. No way would I take the time to build one with this set readily available, and I like to fabricate.
