LED Polarity

Knytemare · Post by **Knytemare** » Tue Jan 16, 2007 11:22 pm

So today I had some lapse of memory and couldnt remember which side of the LED was positive and which was negative and both leads were of equal length. So I did some searching and found some great info and thought I would post it here for others to share.

http://img.photobucket.com/albums/v377/ ... escrip.jpg

Marco Scheloske · Post by **Marco Scheloske** » Wed Jan 17, 2007 4:56 am

Very useful - I always forget which side is what. Thanks a lot!

TREKKRIFFIC · Post by **TREKKRIFFIC** » Wed Jan 17, 2007 1:05 pm

That's good to know if the legs are the same length. Thanks for the post !

jwrjr · Post by **jwrjr** » Wed Jan 17, 2007 11:23 pm

A multimeter with a 'diode check' function is usually useful here. The led will light dimly, but still visibly.

MillenniumFalsehood · Post by **MillenniumFalsehood** » Fri Jan 19, 2007 8:43 pm

I use the mnemonic device: "Since a negative person has a short temper, then negative lead is short".

Ti Raven · Post by **Ti Raven** » Tue Feb 20, 2007 9:10 am

MillenniumFalsehood wrote:I use the mnemonic device: "Since a negative person has a short temper, then negative lead is short".

I am starting to really need these mnemonic thingies... or just starting to admit it! ':D' Thanks for the goodie.