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Old 08-24-2015, 07:44 AM #161
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Default Re: NUBM07E 465nm 2.9W Diode Test (Hitting 470nm+)

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Originally Posted by noobphaser215 View Post
holy santa clause shit! lolol when will they be available?
He already has them for sale for a while. Here's a link: https://sites.google.com/site/dtrlpf...nm-laser-diode

I expect mine to arrive today or tomorrow



Last edited by gozert; 08-24-2015 at 07:44 AM.
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Old 08-24-2015, 11:02 AM #162
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Default Re: NUBM07E 465nm 2.9W Diode Test (Hitting 470nm+)

Well thank you good sir lol I was looking on his site the other day and didn't see them. I should probably open my eyes more
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Old 08-24-2015, 07:37 PM #163
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Default Re: NUBM07E 465nm 2.9W Diode Test (Hitting 470nm+)

Did you mean to put nubM44 on the first one dtr? Also i know that the light blue is to match the laser color but i can not see the difference whatsoever and need to highlight it XD

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Old 08-25-2015, 01:02 PM #164
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Did you mean to put nubM44 on the first one dtr? Also i know that the light blue is to match the laser color but i can not see the difference whatsoever and need to highlight it XD
On the first one? What is the first "one"? Lol. And what light blue are you referring to? I checked both the original post and DTR's site, but I see all of the sky blue stuff just fine.
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Old 08-25-2015, 01:48 PM #165
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On the first one? What is the first "one"? Lol. And what light blue are you referring to? I checked both the original post and DTR's site, but I see all of the sky blue stuff just fine.
The first item on the nubm07e post says nubm744, and idk i guess its just because im on mobile
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Old 08-25-2015, 02:01 PM #166
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The first item on the nubm07e post says nubm744, and idk i guess its just because im on mobile
Ah, yes, I see it now. The listing on DTR's site for the diode only says NUBM44. I'm on mobile also, and I can see all of the sky blue with white background very clearly. Weird.
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Old 08-25-2015, 03:33 PM #167
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Default Re: NUBM07E 465nm 2.9W Diode Test (Hitting 470nm+)

Is this something you are seeing on my site or in this thread? I did have a problem with some users in firefox not seeing the PLP520-B1 diodes the other day not sure why but redid it and now it is visible.
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Old 08-25-2015, 04:39 PM #168
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Default Re: NUBM07E 465nm 2.9W Diode Test (Hitting 470nm+)

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Is this something you are seeing on my site or in this thread? I did have a problem with some users in firefox not seeing the PLP520-B1 diodes the other day not sure why but redid it and now it is visible.
On your site. Go to the diodes page, click on NUBM07E, and look at the listing for the diode only.
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Old 08-25-2015, 05:27 PM #169
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Default Re: NUBM07E 465nm 2.9W Diode Test (Hitting 470nm+)

See it now. Fixed. Thanks.
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Old 08-25-2015, 07:00 PM #170
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Default Re: NUBM07E 465nm 2.9W Diode Test (Hitting 470nm+)

Looking forward to you adding more tested diodes Jordan
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Old 08-25-2015, 09:09 PM #171
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Default Re: NUBM07E 465nm 2.9W Diode Test (Hitting 470nm+)

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Originally Posted by TaterMay View Post
Man, I just don't feel comfortable with pushing anything anywhere near 4 watts without that extra full copper back half. Since I've been monitoring case temp, I've seen what a significant role it plays in dissipating the heat. I just don't even want to chance it with a $150 diode. But it very well may be able to take it just fine. I guess we will see! Are you mounting the driver straight to the diode?
Sorry I didn't see your question, been busy.
No my driver is mounted in it's own housing behind the diode module.
But I do have mine with a regular aluminum back because I used big wire that wont fit through the solid copper back hole and drilling it out would take out most of the little copper pedestal that makes the thermal contact with the diodes back.
What I did was I filled it with heat sink putty to thermally bond the back of the diode to the 12mm aluminum back half.
It's working like a champ, awesome color and a good burner. The divergence is better than the 44 diode as well.
The solid copper backs are a good idea, they work best with the silicon wire DTR uses, but I would also put a little heat sink compound around the pedestal to make contact with the rest of the back of the diode if you are pushing them harder than 3.5 amps.
Want a laugh?
My original host had a little spring pcb battery board that decide to develop an intermittent open, after tearing it down twice and discovering it was the board I gave it the hammer treatment and put the works into a big ugly caveman portable test host.
Point is the aluminum back half filled with heat sink compound transfers heat just fine as I run this ugly host for many minutes and it all gets warm like it should, but the full copper back lets you take it apart and is the way to go.
Attached Thumbnails
NUBM07E 465nm 2.9W Diode Test (Hitting 470nm+)-sany0303.jpg   NUBM07E 465nm 2.9W Diode Test (Hitting 470nm+)-sany0308.jpg  

Last edited by RedCowboy; 08-25-2015 at 10:22 PM.
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Old 08-25-2015, 10:09 PM #172
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Default Re: NUBM07E 465nm 2.9W Diode Test (Hitting 470nm+)

I agree if you are going to run 4A or above on this, the NDB7A75 or NUBM44 diode you really have to have the thermal back half to keep the temp in check.
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Old 08-25-2015, 10:22 PM #173
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Originally Posted by RedCowboy View Post
Sorry I didn't see your question, been busy.
No my driver is mounted in it's own housing behind the diode module.
But I do have mine with a regular aluminum back because I used big wire that wont fit through the solid copper back hole and drilling it out would take out most of the little copper pedestal that makes the thermal contact with the diodes back.
What I did was I filled it with heat sink putty to thermally bond the back of the diode to the 12mm aluminum back half.
It's working like a champ, awesome color and a good burner. The divergence is better than the 44 diode as well.
The solid copper backs are a good idea, they work best with the silicon wire DTR uses, but I would also put a little heat sink compound around the pedestal to make contact with the rest of the back of the diode if you are pushing them harder than 3.5 amps.
Want a laugh?
My original host had a little spring pcb battery board that decide to develop an intermittent open, after tearing it down twice and discovering it was the board I gave it the hammer treatment and put the works into a big ugly caveman portable test host.
Point is the aluminum back half filled with heat sink compound transfers heat just fine as I run this ugly host for many minutes and it all gets warm like it should.
So the back halves that DTR sells have a little pedestal that touches the back of the diode, with a recessed portion around it? Is that what I'm seeing in that picture? If so, what is the purpose of that recessed area?
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Old 08-25-2015, 10:31 PM #174
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Default Re: NUBM07E 465nm 2.9W Diode Test (Hitting 470nm+)

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So the back halves that DTR sells have a little pedestal that touches the back of the diode, with a recessed portion around it? Is that what I'm seeing in that picture? If so, what is the purpose of that recessed area?
Yes every 9mm diode in module from me along with the ones with external driver have a full copper back half shown in the picture above(I do realize the pictures of the ones with external driver still show a solid aluminum back half as I have not had a chance to update with new pictures of it in copper). I also do use thermal grease in all the NUBM44, NDB7A75 and NUBM07E diodes. The recessed area is so the walls of the diode pocked don't interfere with the back half making solid contact with the back of the diode. When screwed in tightly it makes a very solid thermal connection.

Last edited by DTR; 08-25-2015 at 10:32 PM.
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Old 08-25-2015, 10:33 PM #175
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Default Re: NUBM07E 465nm 2.9W Diode Test (Hitting 470nm+)

I ordered one today with a driver set to 4.5 amps through DTR's LPF Google store, lets see what this one looks like through my 2 inch/50mmn expander on a dark night

I would have gone to 4 amps, but want to push it harder hoping for closer to 470nm.
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Old 08-25-2015, 10:41 PM #176
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Default Re: NUBM07E 465nm 2.9W Diode Test (Hitting 470nm+)

Quote:
Originally Posted by DTR View Post
Yes every 9mm diode in module from me along with the ones with external driver have a full copper back half shown in the picture above(I do realize the pictures of the ones with external driver still show a solid aluminum back half as I have not had a chance to update with new pictures of it in copper). I also do use thermal grease in all the NUBM44, NDB7A75 and NUBM07E diodes. The recessed area is so the walls of the diode pocked don't interfere with the back half making solid contact with the back of the diode. When screwed in tightly it makes a very solid thermal connection.
Got ya. Definitely getting one or two of those modules with this order of diodes. I've gotta check them out.

DTR, sent you a PM. I'll be sending you some mu-lah as soon as I hear back from you. No rush, just letting you know.


Quote:
Originally Posted by Alaskan View Post
I ordered one today with a driver set to 4.5 amps through DTR's LPF Google store, lets see what this one looks like through my 2 inch/50mmn expander on a dark night

I would have gone to 4 amps, but want to push it harder hoping for closer to 470nm.
I received mine the other day along with my SXD set to 4 amps, but I do believe I'll be running it around 4.5 for that beautiful sky blue beam.

Last edited by TaterMay; 08-25-2015 at 10:43 PM.
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