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  1. CoherentRays

    Hackaday - How Lasers Actually Work

    Nice find. Thanks for sharing it. + rep when the system allows. Ed
  2. CoherentRays

    Are diode lasers real lasers?

    And I add my thanks too. I've gained a little better understanding of the lasing process. Ed
  3. CoherentRays

    need good builder to fix 7 watt laser.

    You're a better man than I am, Gunga Din! :beer:
  4. CoherentRays

    PLTB450B Build 3 of 3 lasers (very pic heavy).

    Oh, I see. That's a nice one. Now I'm curious too. Ed
  5. CoherentRays

    PLTB450B Build 3 of 3 lasers (very pic heavy).

    Thanks for all the work in photographing your build. Very nice job. Survival Lasers. Extended Length Focusing Ring - Green Anodized Ed
  6. CoherentRays

    Thor MII EBay Laser

    Well, of course the first step would be to remove the batteries so that you don't have an accident and have the laser fire unexpectedly while you're messing with it. After that, I'm not sure. When I look into the battery tube and rotate the head to focus the laser I can see that the contact...
  7. CoherentRays

    I Did Some Laser Builds !

    Thanks for posting that link. I remember that thread. It sounds like there may have been developments since that thread ended. And I agree his continued sales do seem suspicious. Seems like it's time for more updates. Ed
  8. CoherentRays

    I Did Some Laser Builds !

    It sounds like there might be a story here. Do you need to start a new thread to explain what's happening and back up your accusations? If what you're saying is true other people should be warned before they spend money on a scam operation and if not true then AL should have a chance to...
  9. CoherentRays

    Greetings !! (^_^)

    I'd say be sure to check out the various merchants who post on this forum. They can supply you with all the parts you need plus advice. And welcome. Ed
  10. CoherentRays

    New to hobby

    Welcome aboard. You've come to the right place for information and for learning about this hobby. Ed
  11. CoherentRays

    Thor MII EBay Laser

    I haven't used mine enough to really test out the battery which came with it. It's worked OK for the little time I've had it on. I have some Efests and AWs that I'll use if that supplied battery gives any problems. Regarding the charger that came with it, I just tossed that into a box with...
  12. CoherentRays

    Thor MII EBay Laser

    Yes, that's my understanding. The Thor MII has the glass lens unlike the earlier Thor model which had an acrylic lens. It sounds like you lucked out. :beer: Ed
  13. CoherentRays

    Ph!l!ps Germicidal Lamps excited by the tesla coil.

    UV C light is not only dangerous for the eyes but it also can cause damage to the DNA of skin cells. You should protect your skin from exposure to UV C light. Ed
  14. CoherentRays

    Thor MII EBay Laser

    I bought mine from that very same seller but it was listed as a Thor II (Thor 2). It was listed as being in Louisiana but the post mark was New Jersey if I remember correctly. The pictures of the power meter readings showed it around 2 watts. Mine measured 1.8 watts which I considered close...
  15. CoherentRays

    a damaged goggle from ebay seller

    If you can, please post their reply to your email in this thread. I'm interested in purchasing a pair of these goggles too, but am a little nervous about it given the OP's problems with the seller. Ed
  16. CoherentRays

    Best ebay red.

    I got mine (red) about a week ago and just now put it on the LPM. I get a reading of 178 mW. Not bad. Just metered this one at 1.80 W. Ed
  17. CoherentRays

    need hard/high power laser

    I'll bet he'd be willing to sell it to you if you come up with the right price. Would probably include the lasers too. Better hurry though. It probably won't last long. :D Ed
  18. CoherentRays

    Just ordered a 1W 501B from sci-fi!

    Well I gave him some neg, but it doesn't seem to have made any difference. Ed
  19. CoherentRays

    365nm UV flashlight danger ?

    Oh, darn. I ordered one last week for $18.49. That's 80 cents down the drain. :crackup: Ed
  20. CoherentRays

    Had a nice meeting with RedCowBoy in GA.

    Hey, if you're looking for a place to relocate that has nice drivers, consider Denver. I'm always pleasantly surprised when we travel south into Colorado and get into big traffic snarls in Denver. Nearly any time you want to change lanes just turn your signal on and someone behind you in the...


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