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  1. barthchris

    NUGM03 1W 525nm Laser Diode

    Thanks for the warning fellas! No issues yet.... I do realize I'm chancing it without a properly scoped/designed driver. I really need to invest in a decent scope one day and learn how to use it. No modes, just on- off. Remember they were supposedly good to 15V. Just running them on two lion...
  2. barthchris

    NUGM03 1W 525nm Laser Diode

    Yes I did.. Wouldnt connect without measuring first. No oscilloscope so not sure about spikes. Diode seems tough though.
  3. barthchris

    NUGM03 1W 525nm Laser Diode

    Well I switched out the driver for a inexpensive 2.3A round LED driver. Wanted the Black buck for another build. Simple on off, no modes. Still alive and works great. Used A LOT and no signs of degradation. A MUST have diode!!!
  4. barthchris

    ACEBEAM New Arrival: H50 Triple LED Wide Beam Angle Rechargeable Headlamp

    Looks nice really nice. Im almost to the point that working with a headlight is a necessity. Using one that takes 3 aaa. I use rechargable but they still have short life. 18650 is awesome. Have tons of good cells.
  5. barthchris

    NUGM03 1W 525nm Laser Diode

    Agreed. Decanned (when not scanned) they are by far my favorite diode ever. Wavelength is super visable and impressive! I can't remember what I set my current to but I think it's either 1.8 or 2.4A, opting for 1.8A. I think I even went to 3.5A with my PS before any noticeable knee with raw...
  6. barthchris

    25mm heatsink?

    Just use three good 18650's. The current capacity of those nimh will be limited.
  7. barthchris

    Interesting web page discussing the optics of the eye and wavelength

    My peepers suck as age, especially night vision(only 46, look young, feel old). Laser damage ---maybe but I do have an eye doc friend who I met in a drone racing club that looked at my retnias with specialized equipment and saw no damage. BTW the eye doc is a laser nerd. Got his start in...
  8. barthchris

    Solar Pumped Laser

    Ive heard Mars atmosphere has the conditions prime for a natural laser. This was MANY years ago though.
  9. barthchris

    Sharp GH04W10A2GC 350mW 405nm

    Now that Ive totally derailed this thread..... Sorry fellas!! You were right Paul it was an ACS500SE (assume SE is SEPIC) driver not the buck driver. Yes, attention to rapid heat removal is essential. Im anal about diodes being pressed in straight and level with as much package contact as...
  10. barthchris

    Sharp GH04W10A2GC 350mW 405nm

    Same just happened to me yesterday after last post. Lol!!. Maybe a few min of short duty cycles. Was kinda bummed I saw such little light but just for $hit$ & giggles I connected diode to my PS and voila, it was fine!! Brand new ACS5000 set to 900mAh., used 1 really good lion cell(yes...
  11. barthchris

    Sharp GH04W10A2GC 350mW 405nm

    What do you think makes the diode emit in single mode with the amount of power were "pumping" it with. Semiconductor shape? Placement of bond wires. Heat dissipation, quality of semiconductor? All of the above? Its (BDR) is definitely a standout in SM diodes. SOJs tended to blink out on me...
  12. barthchris

    Sharp GH04W10A2GC 350mW 405nm

    Ehh, this place had a special kind of nasty for a time. Ive been posting freely at RC groups, other electronics forums for years without issues. Here was different. A possible explanation could be idiots gaining unwanted attention to our hobby with wicked 1W POS and tolerance was low. Still...
  13. barthchris

    Sharp GH04W10A2GC 350mW 405nm

    Described me to the T. This so deserves its own thread but hell, here it is. My first real laser. 1993 $88 under the glass at radio shack. Was only 18 and HAD to have it. Still works!!! Takes two odd voltage batteries. I dont have it near me to confirm though. I will say this horror of...
  14. barthchris

    Sharp GH04W10A2GC 350mW 405nm

    Retired from lasers?? Lol!! Good to hear he's around. You never know.... He was a rock here during these forums rough and wild days. Who would have guessed a laser pointer forum would created so much drama??? Didn't think nerds like us were drama queens:confused:
  15. barthchris

    DTR's Laser Shop - Laser Diodes & More

    Question about the 22mm $12 AL heatsink you sell. its threaded in the back, any particular 18650 host that will fit those threads??
  16. barthchris

    NUB07 465nm. Gonna love this one fellas!

    Good to know! Are they sensitive to decanning degradation as 445nm are? Wonder if the slight tweak in dopants makes the difference. I know my 525nm diode is running much longer decanned than any 445nm diode has.
  17. barthchris

    UFO/ UAP Research and Laser Pointers Thread

    Religion is the biggest of them all! How many gods are people willing to die over??? I've seen this UFO laser stuff years ago. Bunch of BS IMO. I think their bugs attracted to the IR or whatever visible wavelength they use. Since its not an ionized conductive channel I dont believe its...
  18. barthchris

    NUB07 465nm. Gonna love this one fellas!

    Thanks for the thought Paul. Its a potentially high risk hobby and I screwed up. Great guy Jordan is but I feel uncomfortable asking for a discount for something he probably has low margins on anyway.
  19. barthchris

    NUB07 465nm. Gonna love this one fellas!

    Condolences for your loss! I love this place!!! Thanks Red! I tried it backwards, trying to save the gball lens for some reason. One slip! How about heating them? think that would break melt the indium solder? I assume its indium.
  20. barthchris

    NUB07 465nm. Gonna love this one fellas!

    So I waited in anticipation for my 465nm diode to arrive from DTR. Pressed it into a heatsink and used a PS to test. Divergence with Gball is absolutely unacceptable so I decided to remove the can the" proper way" with a vice and pliers. Anyway I did a real bone headed move and somehow...


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