FS: ~650mW 638nm, in camo 501B: $80

Tmack · Feb 12, 2014

Re: FS: 520nm, and 638nm, in 501Bs with GITD FA

When removing the tail cap I made a quick connection to the battery tube and the negative of the battery. It made a little click sound at the diode and when I went to turn it back on I got nothing. Just making that connection should Not have killed the diode. I have no idea why. I swear that exactly what happened. I've done it to other lasers with no problems. Just wish I knew what caused the death of the diode.

Atomicrox · Feb 12, 2014

Re: FS: 520nm, and 638nm, in 501Bs with GITD FA

Damn. I do that all the time with many lasers and never had any issues... I'll never do it again!
Sorry for your loss, man

Tmack · Feb 12, 2014

Re: FS: 520nm, and 638nm, in 501Bs with GITD FA

It shouldn't have hurt it. That's why im so confused

Atomicrox · Feb 12, 2014

Re: FS: 520nm, and 638nm, in 501Bs with GITD FA

Yeah, hope someone will read this and know/post the reason.

Shakenawake · Feb 13, 2014

Re: FS: 520nm, and 638nm, in 501Bs with GITD FA

On that note, I just repaired my Dominator today!!! too bad I have no LPM so I cant tell its output, but it looks like it used to. still no back of diode heat sink, but I will stick with safer duty cycles for now

I couldnt do the soldering myself, but the diode press came today, so I called up the local electronics shop to see if they could help me, told them I could point out exactly what needed done, just some soldering. I show it to the guy and he's like, "oh this'll be easy. on the phone you made it sound harder, I've soldered wires the size of hairs" he was interested in the working results, I took safety glasses so I could do a demonstration. he was blown away. he seemed to realize he had everything but a diode press to build lasers and asked about where to get stuff to do it

Tmack · Feb 13, 2014

Re: FS: 520nm, and 638nm, in 501Bs with GITD FA

Haha. Hook line and sinker. Got us another one.

Great news. Now you repair mine.

Or build the pens. Hmmmm

Atomicrox · Feb 13, 2014

Re: FS: 520nm, and 638nm, in 501Bs with GITD FA

Great news, glad to hear it worked out in the end!

Shakenawake · Feb 17, 2014

Re: FS: 520nm, and 638nm, in 501Bs with GITD FA

AND now the DominatoR's dead again, LED diode. stuck with 1 minute or less, did not matter. glad I did not sell it with this diode as it would have conked out on the buyer, but I AM GETTING REALLY F****** TIRED OF THIS LUCK. I almost want to say F*** it and sell all my units, just call them all broken to cover my ass even if they currently work.

this is some B.S. half my handhelds have needed diode replacement, the DominatoR twice now, and the 638 may need a new one (again). know how many of these dead diodes lasted at least a year before dying? ZERO

Tmack · Feb 17, 2014

Re: FS: 520nm, and 638nm, in 501Bs with GITD FA

OMG I'm so sorry. Tell you the truth, I'm scared to put a new one in mine at 2.56a.

I went through a month were I killed 3 diodes. Couldn't believe my luck either.

Shakenawake · Feb 18, 2014

Re: FS: 520nm, and 638nm, in 501Bs with GITD FA

I really want to hear how many of the current gen 9mm diodes have died, and how fast, at that current. I mean the previous one took 4 minute duty cycles a fair number of times before slightly degrading, this one dies with less than 10 minutes total, about 30- 45 seconds at a time on it? Now I'm not sure what to do with the husk, because I also stripped the set screw hole in the heat sink. can these be re-threaded and used with a slightly larger set screw? is this going to cost a bunch? I almost just want to offer it for $20 + shipping to anyone who wants it

Tmack · Feb 18, 2014

Re: FS: 520nm, and 638nm, in 501Bs with GITD FA

I'm sure it could be re tapped to fit a larger set screw. Tap and dyes are pretty expensive if you're just using it for that. I'm wondering if the guy who soldered it did something wrong. Maybe a short with a frayed wire. Just a guess though. Rick trent runs his at that current all the time, as you know.

Atomicrox · Feb 18, 2014

Re: FS: 520nm, and 638nm, in 501Bs with GITD FA

Might be that Blord bins the diodes that can take the full current and uses them on the Cu Dominator and uses the "weaker" diodes on the Al version and on other hosts?

But yeah, your luck is quite strange with those things

Sorry for your loss, man.

BowtieGuy · Feb 18, 2014

Re: FS: 520nm, and 638nm, in 501Bs with GITD FA

Yes, you can re-tap that stripped set screw hole with a larger size, or if you want to, you can drill a different hole and put the same size screw in another place.

Shakenawake · Feb 18, 2014

Re: FS: 520nm, and 638nm, in 501Bs with GITD FA

hopefully somewhere close can re-tap that heat sink, I'd rather not ship it.

If it was a short, wouldn't it fry, not LED?

JASON1173 · Feb 18, 2014

Re: FS: 520nm, and 638nm, in 501Bs with GITD FA

Shakenawake said:
hopefully somewhere close can re-tap that heat sink, I'd rather not ship it.

Maybe try a machine shop that resurfaces engine parts or something similar. They should be able to re-tap the hole with no issues.

Sorry for your losses. I hope everything turns out better for you.

-Jason

BowtieGuy · Feb 18, 2014

Re: FS: 520nm, and 638nm, in 501Bs with GITD FA

A local shop ought to be able to do that for you with a similar size tap for a reasonable cost. Shipping would probably kill you.
If by chance you can't find anybody to do the work, and you find that shipping is reasonable, I'd do it for you N/C.
If you decide to do it yourself, and need a small drill bit and tap, let me know, I may be able to help.

FS: ~650mW 638nm, in camo 501B: $80

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