LED question...

Crosstrack16 · 04-18-2003, 10:43 AM

does anyone know where i can find dual led's with purple...
ie: purple and green or purple and red...
UV is ok too

bigben2k · 04-18-2003, 10:51 AM

Dual colored LEDs are rare, but the color combo you're looking for is probably non-existant.

Look for an alternative.

Joe · 04-18-2003, 01:02 PM

to get purple you need to go with a quad connector LED. Where there are 3 diodes in one housing, share a common ground. With those you can make any color you want by changing voltage to the 3 other pins.

Crosstrack16 · 04-18-2003, 01:04 PM

Joe, where might i find one?

Joe · 04-18-2003, 01:21 PM

google has all the answers:

https://www.netdisty.net/ds/dis1024/default.asp

and

https://www.netdisty.net/ds/sml13rgb/default.asp

Joe · 04-18-2003, 01:26 PM

https://www.netdisty.net/ds/rgb1004/default.asp

Wow a whole array of them!!! that rocks 90$ though

but if you were good with soldering and had something to control them, I bet you could do some damn awesome things with it.

punish3r · 04-20-2003, 08:06 AM

Damn, did you see the mcd output on those displays? You couldn't light up the inside of a film canister... Anyway, if you're only looking to buy one 3-color LED, Mouser has them for about seven bucks a piece. They're either made by Chicago Miniature or Kingbright, I don't remember which. Either way, you're getting a VERY well made LED, with a minimum mcd output in the twenties, and an average in the seventies. By no means bright (your average "Super Bright" rated LED will output anywhere from 1000-3500 mcd) but more than visible. Anyway, until they make a Red/Blue bi-color, there is one other option. A low nM UV LED reverse biased with a red LED, both shining through the same LitePipe. Conveniently enough, Exabyte Systems sells a 400-405 nM UV LED in a five pack for $2.50 US available for order here, and LitePipes are available from our friend Mouser for about twenty six cents a piece. All in all, you could make 5 Ghetto Rig Purple/Pick-a-Color LED's for about a buck a piece. Assuming you can wait for the parts to be mailed.

So yeah. I spend way to much time reading electronic supply catalogs.

nexxo · 05-05-2003, 02:29 PM

Visit FrozenCPU for dual red/blue LEDs. Dual white/blue LEDs exist also (but I can't remember who sells them, one of the PC modding sites), and even green/yellow LEDs (as opposed to green/red ones, e.g. here). There's the RGB LEDs mentioned above.

04-18-2003, 10:43 AM	#1
Crosstrack16 Cooling Savant Join Date: Jun 2001 Location: Spring Hill, FL Posts: 169	LED question... does anyone know where i can find dual led's with purple... ie: purple and green or purple and red... UV is ok too

04-18-2003, 10:51 AM	#2
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	Dual colored LEDs are rare, but the color combo you're looking for is probably non-existant. Look for an alternative. __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

04-18-2003, 01:02 PM	#3
Joe The Pro/Life Support System Join Date: Dec 1999 Location: Denver, CO Posts: 4,041	to get purple you need to go with a quad connector LED. Where there are 3 diodes in one housing, share a common ground. With those you can make any color you want by changing voltage to the 3 other pins. __________________ Joe - I only take this hat off for one thing... ProCooling archive curator and dusty skeleton.

04-18-2003, 01:21 PM	#5
Joe The Pro/Life Support System Join Date: Dec 1999 Location: Denver, CO Posts: 4,041	google has all the answers: https://www.netdisty.net/ds/dis1024/default.asp and https://www.netdisty.net/ds/sml13rgb/default.asp __________________ Joe - I only take this hat off for one thing... ProCooling archive curator and dusty skeleton.

04-18-2003, 01:26 PM	#6
Joe The Pro/Life Support System Join Date: Dec 1999 Location: Denver, CO Posts: 4,041	https://www.netdisty.net/ds/rgb1004/default.asp Wow a whole array of them!!! that rocks 90$ though but if you were good with soldering and had something to control them, I bet you could do some damn awesome things with it. __________________ Joe - I only take this hat off for one thing... ProCooling archive curator and dusty skeleton.

04-18-2003, 01:04 PM	#4
Crosstrack16 Cooling Savant Join Date: Jun 2001 Location: Spring Hill, FL Posts: 169	Joe, where might i find one?

04-20-2003, 08:06 AM	#7
punish3r Cooling Neophyte Join Date: Nov 2002 Location: Colorado Posts: 34	Damn, did you see the mcd output on those displays? You couldn't light up the inside of a film canister... Anyway, if you're only looking to buy one 3-color LED, Mouser has them for about seven bucks a piece. They're either made by Chicago Miniature or Kingbright, I don't remember which. Either way, you're getting a VERY well made LED, with a minimum mcd output in the twenties, and an average in the seventies. By no means bright (your average "Super Bright" rated LED will output anywhere from 1000-3500 mcd) but more than visible. Anyway, until they make a Red/Blue bi-color, there is one other option. A low nM UV LED reverse biased with a red LED, both shining through the same LitePipe. Conveniently enough, Exabyte Systems sells a 400-405 nM UV LED in a five pack for $2.50 US available for order here, and LitePipes are available from our friend Mouser for about twenty six cents a piece. All in all, you could make 5 Ghetto Rig Purple/Pick-a-Color LED's for about a buck a piece. Assuming you can wait for the parts to be mailed. So yeah. I spend way to much time reading electronic supply catalogs. __________________ Fix reason firmly in her seat, and call on her tribunal for every fact, every opinion. Question with boldness even the existence of a God; because, if there be one, he must more approve of the homage of reason than that of blindfolded fear. -Thomas Jefferson Last edited by punish3r; 04-20-2003 at 08:13 AM.

05-05-2003, 02:29 PM	#8
nexxo Cooling Savant Join Date: Jul 2002 Location: Brimingham, UK Posts: 385	Visit FrozenCPU for dual red/blue LEDs. Dual white/blue LEDs exist also (but I can't remember who sells them, one of the PC modding sites), and even green/yellow LEDs (as opposed to green/red ones, e.g. here). There's the RGB LEDs mentioned above. __________________ "There is a thin line between magic and madness" Last edited by nexxo; 05-05-2003 at 02:49 PM.

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