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  1. K

    Old alarm battery for LPC-815 with LM317?

    Hey all, I've recently managed to change battery in alarm and i got this pretty nice, kinda year or two years old battery It outputs ~13.25V when fully charged. I have made very simple DIY laser Specs written at image above. I'm just thinking if using this battery (with aligator clips...
  2. K

    2-3W 650nm Laser - Combined Modules

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  3. K

    LPC 815 at ~460mA?

    Hello guyz, I just wanted to ask, if anybody knows how high this diode can go, with some kinda stable results and some good diode lifetime? Coz i'm making now new laser, and as driver I got LM317T with resistor, and i picked 2.7 ohm one. Just if its too much for this diode, or can it handle...


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