LED problems ? ...- - - ...

Normark · Aug 22, 2002

Hey Guys..

I've got a questions..

Please remember i'm a dumb sheath maker and not a electronics Geek..

I bought a "Bright Blue" LED from the Shack, shortened the leads on it and stuck it into a 2 AAA mini mag...

Result...

Nothing, Nada Zip!!!

Why ???

Did I fry it ???

I wanted to do a cheap-O LED conversion on the mini mag, but instead have a $5.00 LED and a screwed up reflector on my mini mag..

Any suggestions would be Great..

ttyle

Eric...

**DONOTDELETE** · Aug 22, 2002

you may have the led backwards in the circuit, or the voltage isn't enough. blue led's require about 3.5- 3.7 volts

The_LED_Museum · Aug 22, 2002

If the LED you bought was part # 276-311, it will *not* light up on 3 volts. Most other blue LEDs will, to some degree or other. None will be at full brightness however.

Normark · Aug 23, 2002

Hey Guys..

Thanks..
Low voltage is probably the problem..
I havea regulated DC pwer supply at work,, I'll play with it....

Thanks much..

Eric....

yclo · Aug 23, 2002

Eric,

Have you got my emails?

YC

**DONOTDELETE** · Aug 23, 2002

Try the 12 volt battery + tinfoil trick. It will light up your led.

Lantern Jack O. · Aug 24, 2002

See this thread, this thread, and this thread for help on Solitaire mods.

carbonsparky · Aug 24, 2002

Just watch your current and you should do fine. I usually like to but a small resistor(about 50 ohms) in series with the led when I am bench testing. This gives you a larger range of voltage you can inject into the led circuit. The best thing is if you have a current regulated supply, you can run up the current to your needs. I have one at work I can use, but at home I just have regulated voltage supply.

Slick · Aug 24, 2002

Make double sure the polarity is correct so you don't fry it..

jbechto · Aug 26, 2002

3 "N" cells with a 1/2 " slug on the bottom should work nicely, if a bit overdriven.

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