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    Longer lasting batteries?

    Hello, I currently have a Green <1mW laser pointer and I enjoy using it for lots of things. A problem I am facing is that the batteries run out very quickly (they last for about a day using my laser on and off every now and then) and it cost about $10 to get new ones...everyday. I don't want to...
  2. D

    Where are the positive and negative connections?

    Hey, I found an old CD-ROM driver called "Diamond Data CD-ROM" and when I opened it up and found the laser it is almost impossible for me to work out which are the positive and negative connections. I counted 10 different connections and like I said I cannot tell which are the right ones. Here...


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