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  1. rhd

    2.1W "Evil Shadow" 650nm C-Mount Diode build Handheld

    Ya, I second that. That was really f'ing annoying.
  2. rhd

    2.1W "Evil Shadow" 650nm C-Mount Diode build Handheld

    I third that. Link please!
  3. rhd

    The "Clean Edge" Driver - 2.85A driver for pushing 462s (478nm hit so far)

    445, 450, 465, 473, 478, 495 - would be kind of cool!
  4. rhd

    The "Clean Edge" Driver - 2.85A driver for pushing 462s (478nm hit so far)

    Re: The "Clean Edge" Driver - 2.85A driver for 462s - want to review/test? Quick note - Using version F7V6 of the Edge Driver, set at 2.85 Amps, I was able to get a 478nm output from a Nichia 462. Built in one of Sinner's hosts, I can get a duty cycle of ~2 minutes before the diode gets too...
  5. rhd

    FS: The MicroDrive SLR Boost Driver

    For anyone who doesn't know, reflowing such tiny boards takes a lot more time than reflowing nice big 12x9 boards like a flex drive. The fact that these are being sold for $17 is impressive!
  6. rhd

    2.1W "Evil Shadow" 650nm C-Mount Diode build Handheld

    Do you want to sell one? I bought one from cdbeam that turned up doa, so I'm still looking for one.
  7. rhd

    FOR SALE: Aluminum Heatsinks for 12mm modules(Price Drop)

    Re: FOR SALE: Aluminum Heatsinks for 12mm modules Wish you could ship to Canada for that price, because I need one of these.
  8. rhd

    FS: The MicroDrive SLR Boost Driver

    Looking at your design, it occurs to me that you should see if you can find the AX5525 IC. I've never been able to find them actually for sale, but if you can find them, they're the same package and they look pin compatible with your design, and would allow you to kick the current up even...
  9. rhd

    FS: The MicroDrive SLR Boost Driver

    EDIT: Cool! Watched the video with sound. Looks good :) You should post some screenshots of the scoping.
  10. rhd

    Laser not strong enough

    You may have killed your diode by using an improper Chinese LED driver on a laser diode. That's not just a LED driver, it's a dirt cheap one with a low frequency IC. It's probably crazy ripply.
  11. rhd

    The REALLY Heavy Load - 30A test load

    The version pictured used slightly cheaper TO252 diodes, and they're only rated for 15A average. Another revision that's otherwise the same swapped those for the 30A TO263 diodes. I may swap for TO220 though, with neutral tabs that can be heatsinked. Dirty PCBs. They're as cheap as it gets...
  12. rhd

    The REALLY Heavy Load - 30A test load

    Both. By choosing a jack, you choose the number of diodes. There are also two jacks on the other half of the board for choosing between a 0.1 and 0.01 ohm sense resistor.
  13. rhd

    The REALLY Heavy Load - 30A test load

    The underside is meant to be attached to a heatsink / fan, like a CPU cooler. Thin aluminum will be used to level the various ICs, and then arctic silvered to the heatsink.
  14. rhd

    2.1W "Evil Shadow" 650nm C-Mount Diode build Handheld

    There are probably two reasons: 1) Most adjustable drivers use some form of voltage drop scaling, and typically that involves a second IC in the output current path. That second IC is often powered directly from the output current path, which means that if the IC has a minimum operating voltage...
  15. rhd

    20%off laser618 500mw 405nm Aluminum Alloy Purple Laser Pointer

    Without showing proof of your power measurements on an LPM (laser power meter) nobody will but your lasers on this forum. It's not enough to "promise", "guarantee", etc, you need to prove it with LPM data or nobody on this forum is likely to even consider purchasing from you. Good luck with...
  16. rhd

    20%off laser618 500mw 405nm Aluminum Alloy Purple Laser Pointer

    You forgot to post LPM data / photos.
  17. rhd

    FS: Sanwu Laser store - RGB handheld lasers, 405nm,445nm,465nm,470nm,505nm,515nm,520nm,525nm,635nm,650nm

    Re: Sanwu Laser shop - everything you can imagine No no - not that weird double beam diode. I mean the new 1.8W Mits: MITSUBISHI ELECTRIC News Releases,Mitsubishi Electric Develops New Red Laser Diode for Projectors with Industry-leading Output Power
  18. rhd

    FS: Sanwu Laser store - RGB handheld lasers, 405nm,445nm,465nm,470nm,505nm,515nm,520nm,525nm,635nm,650nm

    Re: Sanwu Laser shop - everything you can imagine Interesting. I'd be interested. How does the beam compare to the mits 500?
  19. rhd

    ILT Argon laser for sale.

    Wups. You forgot to include price, and photos.
  20. rhd

    I found it, Pyramidal Woo Woo Central

    I agree with you 100%. I also think that some of the scratch lottery tickets out there will win a million dollars. It's a fact that of all the millionaires in this world, at least some of them got that way because they purchased a scratch ticket even though someone told them it was a waste of...


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