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I recently bought an 808nm $5 diode from ebay to mess around with, but I see from searching that its not always the normal pinout. Can someone point me in the right direct so I don't fry this poor little $5 diode before I get to burn something with it.

I decided to go the route of 2x CR123A's to power my project, however I'm unable to find a premade case or box with contacts and leads. I see tons of "storage cases" when I search so its a bit hard to find if its out there. Just want something like the many 2xAA, 4xAAA, etc, style packs I see at...

I am currently building a setup that includes a current regulator and voltage regulator using 2x LM317. I have a few questions before I start however. I am using the following setup on my driver board: http://laserpointerforums.com/f42/diy-homemade-laser-diode-driver-26339.html 1. I see in the...