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I would assume the cap wasn't charged at all when it came from radio shack, but maybe it was.... :c I didn't see any sparks or anything, and since it is 100 mfd does that make it unsafe to discharge across my tongue? Can I try running it with 10 ohm instead? The listing also said that its...

Hey All, I have built a DDL driver with a 5 ohm (2x10 in parallel: measured value=5.4) resistor and hooked it to my 405nm diode (New 250mW+ 405nm 6X High Power Blue-Violet Laser Diode - eBay (item 270750778133 end time May-31-11 19:19:53 PDT)), however no light comes out. My battery is a 9-volt...

Hello again, Strictly as an inquisitive question, it probably doesn't matter at all, but what does DDL in DDL Driver stand for? And I'm a bit lost still on how to build one. Also, my diode did not come with a pinout diagram, is it safe to assume the same as the violet one in the "Meta Topic"...

Oh dear, rather "operation current: ~5.1V @ 190 mA" which leads me to believe 2.2v is the threshold voltage, as the listing actually says. I apologize for being an idiot :) Also, I have a 5-Volt voltage regulator that has 3 pins (AS WELL), and since my only electronics background is general...

Okay, I will check out that thread, but are you sure about 808nm? I trust you, because when I hooked it to 3V nothing came out (3 AAAs) but I might not have had the pins correct. Since there are three pins and a measured resistance of -1 (infinity) I have no clue what I'm doing. Possibly to add...

Hello All, I have recently purchased a 250mW (~2.2v @ 190mA according to the shop page) 405nm diode and it arrived today. It has three pins on the back and being sort of a newbie at electronics, I was wondering if anyone could tell me how to connect them? My multimeter has displayed infinite...