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  1. barthchris

    Black buck 5.5A reverse polarity fuse location

    No prob, havent even messed with it yet. Been too busy with other "issues". As far as women there has to be a few good ones out there that don't hate our hobbies. Mines a middle school teacher, been married 15yrs. She was OK until kids, now an uptight nun that I avoid like the plague. I...
  2. barthchris

    Black buck 5.5A reverse polarity fuse location

    Thanks, got dig through my "hoarded" parts., got probably a thousand or so various FETs to chose from, sure a FQP47P06 is in there somewhere. Is it just me or do all you guys do a certain amount of parts "hoarding"? Il take a heat gun, hell, even hold it off the propane grill and heat the...
  3. barthchris

    Black buck 5.5A reverse polarity fuse location

    Any specific MOSFET you would recommend? Just for ease of availability in parts bin preferably a TO-220 package..
  4. barthchris

    Black buck 5.5A reverse polarity fuse location

    Well, apparently the fuse didn't protect the driver. Diode is fine, tested on my PS (one thing wife didn't pack away). I jumped the fuse with a small piece of solder wick and no dice. All solder connections are proper, not bridging other components. Not sure what fried, no obvious damage...
  5. barthchris

    Black buck 5.5A reverse polarity fuse location

    Thank you! Thats the one I suspected. Guess Ill just jump it until or if I ever get around to finding a replacement. Fish out of water with no meter, guess I could rig something up with a button cell and a led.
  6. barthchris

    Black buck 5.5A reverse polarity fuse location

    Long-time no see fellas! Getting back in the light amplifier hobby after some time off. I used DTRs excellent service to obtain a num44 V2 and a blackbuck 5.5A driver. I had it working but was testing with two 18650s outside a host and made the rookie mistake of connecting power in reverse...
  7. barthchris

    Exciting news about Blu-ray lasers and fossils

    Lol! I'm a little late to reply but yeah, even though no harm would be done it would be front page news, seriously! I've actually worked in the vault that contains the Declaration of Independence, Constitution, and Bill of Rights. Compared to minerals those documents can easily be damaged by...
  8. barthchris

    gonna try a 375nm pointer build...

    I discovered the eye lens floureceing thing a few years ago, weird effect. Showed my wife and tried it on her but it showed little if any effect on her. Were both in our forties, only 19 days apart age wise, no she never had a lens replacement surgery. Maybe mine are "aged" from too much sun...
  9. barthchris

    what is the laser used in observatories?

    Yeah, those guide star lasers are incredible, incredibly expensive as well. DPSS lasers are expensive at high powers, especially with lesser used wavelengths. I wonder if there ever will be a commercial use for yellow diodes. I think RGB covers all the bases needed for display tech, can't...
  10. barthchris

    NUBM44 6W+ 450nm Laser Diode

    Not really a burning thread but if you're into this sort of thing I've noticed that small particles suspended in water will make a loud popping noise if hit with the focused output of this diode. I first noticed it with a 15yrs old bottle of Goldschlager I had in my liquor cabinet, its that...
  11. barthchris

    NUBM44 6W+ 450nm Laser Diode

    Yeah, I've become obsessed with low divergence as well. Be careful pointing straight up, could probably blind satellite sensors with a tight beam! Lol!! Hmmm, high power, low divergence got me thinking about getting revenge on my local speed cam.:yabbmad: Just kidding:evil:
  12. barthchris

    NUBM44 6W+ 450nm Laser Diode

    Hey, that was me that burned my ceiling fan blades!;) Give credit where credit is due!!!:rolleyes: BTW, the smell is horrendous! I've successfully "decanned" many a diode using a rather unconventional method. I'm the type who always tries different lenses, even taking precautions while...
  13. barthchris

    Exciting news about Blu-ray lasers and fossils

    Yeah, it's a place that everyone who possesses a curious mind should visit at least once. Unbelievable, first-class collection of almost every natural curiosity. I especially like the meteorite section, the iron meteorites fascinate me being that they originated from the precipitated cores of...
  14. barthchris

    Exciting news about Blu-ray lasers and fossils

    Awesome find! Doesn't surprise me though, 405nm causes tons of things to fluoresce, even peanut butter, it really is an interesting wavelength. I work in DC, I can easily stroll through the Natural History Museum during lunch. Its crossed my mind more than one time to bring a small low...
  15. barthchris

    Beam comparsion, 05, 06, 07, 08, 044, 7475

    Im not sure about the oxygen part because I dont think the diode assembly is hermetically sealed and or backfilled with some inert gas in the first place, not intentionally anyway. Personally I feel the reduced life is from the current we drive them at plus without protection from dust/crap...
  16. barthchris

    Beam comparsion, 05, 06, 07, 08, 044, 7475

    Man, I know that took a lot of work and time to pull this off. Thanks! For the 445-520nm multimode diodes, I find I just can stand the G2 lens, I have six of them floating around unused. The G2 is great with single mode 405nm but with multimode, fuggedaboutit! I've always loved the two...
  17. barthchris

    My DIY Spirograph

    I just built a simple single color spiro. I used a combo of old brushed RC motors and some motors pulled out of a inkjet printer. For my FS mirrors I cut small squares from a hard drive platter, JB welded them onto the motor shaft with pinion attached. After the JB weld hardened I spun the...
  18. barthchris

    [The Yellow Lantern] Mag-Lite 638/520nm combo

    Damn man! Awesome job!!! Yeah, I know this is an older thread, but I've been going through your builds and I have to say, you have a great creative streak. Reminds me of my father, he can come up with a solution to almost any problem. Its a rare skill! For a build like this, I lose...
  19. barthchris

    Vietnam Era 445nm /9mm field light

    Awesome job! Got yourself a right angle burner! I remember those flashlights when I was a kid in the 70's/early 80's. They had the red lens attachment for night use. As dim as they were, you could probably get away without the lens for nights, lol! Even back then I thought "there has to be...
  20. barthchris

    Pioneer 16X BDR-209DBK

    OK gotcha on the yellow color thing, my browser shows the word yellow, now I understand. No need to show an image unless you want, I've seen the chip under magnification after dissecting a dead Blu-ray diode. Its crazy how much light gets produced in such a small space, even crazier that the...


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