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Changing the current is a different story, you lose track then. But i was referring to other cases. Besides it doesn't take replotting, just measuring a laser's power. Only case of reported 8x degradation i know of was when Hemlock Mike posted about his diode dropping into a kink. How often...

30h Murder Candidate #2 PI Plot: Diode Stats: - Ith = 34mA - Slope Efficiency = 1.294mW / mA - Absolute Efficiency = 20.58% Avg. - Po @348mA = 408.7mW (90.11% of initial Po) It took 30h of ON-Time for the diode to lose just under 10% of it's power. This is where the first diode was at...

Nearing 30h ON-Time with the second diode @348mA! :yh: The old diode has crossed 10.000 cycles by now @300mA, waiting for 180h... For those using this info to decide on a current setting, please keep in mind that power matters too, just as much as current. Just because one low efficiency 8x...

Here is the money shot... Murder Candidate #2 at 20h (and #1 at 160h): An attempted beamshot: 20h PI Degradation Plot (Murder Candidate #2): Diode Stats: Ith = 33.5mA Slope Efficiency = 1.319mW / mA Absolute Efficiency = 21.09% Po @ 348mA = 416mW (91.73% of initial) Now this is...

At 305mA it's unlikelly the Vf would come close to 6V, but the two 12x's i tested so far have both shown much higher Vf's than 8x's. I initially used Dave's Vf info to "proove" that 12x's are new, different, higher power diodes than 8x's. Unfortunatelly after re-testing Dave's diode, i...

Murder Candidate #2 is at 348mA (i was aiming for 345mA, came out a little higher). I meant if they survive ~350mA so far, they will also have a chance at 10mA more. Unfortunatelly i can't deal with usage estimates, because i have noticed that many people, including myself, drastically...

Re: 8x Drive Mini "GB" - DONE Ok, the 8x lasers go out in an Express package to California Monday morning (which counts as Friday evening for TNT). They will be reshipped from California by Scopeguy with Priority to individual owners. I'm assembling them according to everyone's Order Summary...

I let the diodes run all day yesterday and through the night, and they reached 160h on Murder Candidate #1 (LG 8x #3) and.... 20h on Murder Candidate #2 (LG 8x #1)! :yh: 20h explains how they can be set to 360mA and then last a while...

Re: 12x Murder Fund! (Complete!) That i agree with. Lava told me about his ramping-cycling-replotting idea to find the point where rapid degradation sets in. We know that degradation is fastest at the very start, we also have some limited ideas of how these diodes degrade. Degradation...

Re: 12x Murder Fund! (Complete!) You and i are already sending money to FlamingPyro for the 12x's including the new murder candidate... Also, Bryce while sending some money over to me already contributed $16. I don't wanna make a confusion out of this, but if anyone is collecting money...

8x's don't seem to degrade in that way, at worst i'm expecting a kink to develope, but they seem to wanna degrade quite a bit further.... Anyway, the 12x driver was reset to 300mA, tested and placed on the old 8x diode. The first 8x is now blasting against the second counter setup meant for...

440mA on an 8x? So it's not even a freak? EDIT: I just checked, and it must be a high efficiency diode, i've only seen one higher. And i've seen some 8x's have very low Vfs.... I guess it's possible the Vf would end up around 6V or a tiny bit more allowing the FlexDrive to work. But it's...

So, i did a 10h replot and i got some fascinating results... Diode Stats: - Ith = 33mA - Slope Efficiency = 1.331mW / mA - Absolute Efficiency = 21.07% - Po @ 348mA = 420.3mW (92.69% of initial) With this diode the Ith IS actually climbing. I did a very careful Ith measurement and it...

Re: 12x Murder Fund! (Complete!) It will definitelly be tested at higher currents than the 8x's, we do want more power from it obviously, like i said, one thing is to proove the diode is better than 8x's. Why would i even worry about this, when we read that 12x's require 300mW? There was...

Re: 12x Murder Fund! (Complete!) Ok, most of the things required to arrange a new test are in place. But since there are many donation suggestions i want to explain something, just to make sure we're on the same page. I would like to test this diode like in the good old days, when i was...

Fascinating. 605mW and no degradation after 30 minutes + your normal use? These diodes apparently vary more from one to another than we thought. Especially since the low efficiency 12x never reached 605mW. This is also the reason i badly want to test another 12x, only at a safer current -...

I don't see how we could use it for anything else after all it's been through. What it CAN do is show us just HOW FAR these diodes will degrade before dying, ultimatelly providing a total lifetime (and degradation pattern) to be expected in a laser for this 8x diode at 300mA. I am hoping the...

Re: Lol ! The first diode was stopped at 150h, because i was expanding the Torture Chamber for the Double Murder Experiment, and also because there seemed to be some confusion as to what to do with the diode... People had all kinds of suggestions, everything from "push it till it pops" to...

Re: 12x Murder Fund! (Complete!) I have tiny solar panels and panel meters. If you can make the circuit, i can hook it up to the Torture Chamber... Actually i think i currently only have one suitable panel meter, but only the 12x needs monitoring of this type. The 8x is just fine with...

Re: 12x Murder Fund! (Complete!) It's just a photo-diode that detects IF there is light above a certain minimum cut-off level. The replottings are meant to test what happens in between. Problem is, i made an assumption that if a diode will die, it will die PROPERLY, as in LED, or at worst...