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Old 04-23-2016, 07:28 PM #97
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Default Re: New diode!!! Nubm47-a1

Is the pic showing it reading d/c current?

Ok, is see, nice

Ever use it to set a driver?



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Old 04-23-2016, 07:44 PM #98
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Default Re: New diode!!! Nubm47-a1

I have a high quality one I use, but I have been buying the fixed drivers.
I just got this out of it's case, I didn't hit the REL button, my efest should be closer to 4a, after I hit the rel it was 3.74a.

I can test it against my good inductive meter and see.

After I zeroed it my efest pulled an amp per volt into 1 ohm as it should, both meters were in the ballpark.

Make sure you get the right tenma one is DC current and one model is not. 72-7226 TRUE RMS




Attached Thumbnails
New diode!!! Nubm47-a1-sany0617.jpg   New diode!!! Nubm47-a1-sany0625.jpg   New diode!!! Nubm47-a1-sany0618.jpg   New diode!!! Nubm47-a1-sany0620.jpg  
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Old 04-23-2016, 10:30 PM #99
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Default Re: New diode!!! Nubm47-a1

Mcm electronics and parts express sell some meters pretty cheap. I own a couple Tenma meters and they work fine but not the kind of quality you get with a fluke. I also have another dc clamp on that goes with another fluke I have. I had no idea you could buy a DC Amps clamp meter so cheap though. Nothing is cheap with Flukes and that feature isn't added on until you spend a bit so I made the assumption other brands would still cost quite a lot for it.
I am pretty sure the first Tenma I bought was from radio shack so I always associate them with it. There are some real good deals on Tenma meters and I could have sworn a long time ago they were US made. I have lots of flukes from buying better and better ones over the years as I used them everyday all day when I was working and I swear by them. It sounds like I'm really trying to knock other manufacturers but I'm really just trying to say Fluke meters are worth what you pay for them and no that doesn't mean you need to buy a Fluke to do what we do.
What were we talking about?
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Old 04-23-2016, 11:01 PM #100
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Default Re: New diode!!! Nubm47-a1

Yea I have some Fluke stuff myself, I have several of their microprocessor controlled multi meters from winning ebay bids, some are the same model number and others are different model numbers yet they all read the same, that really says something.
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Old 04-25-2016, 12:00 AM #101
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Default Re: New diode!!! Nubm47-a1

Ya, ya, ya meters.

Now about that new diode 8-) The suspense is killing us!
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Old 04-25-2016, 07:51 PM #102
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Default Re: New diode!!! Nubm47-a1

This is the adjustable driver. They work really well.
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Old 04-25-2016, 10:21 PM #103
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Default Re: New diode!!! Nubm47-a1

This is just a quick video of the driver in action. That's only an A140 diode. If anyone wants any I'll do 4x diodes for $60.00 priority shipping included.
But these drivers a nice. Even without a heatsink they barely get warm.

https://youtu.be/wmlm4jRve_M

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Old 04-25-2016, 10:25 PM #104
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Originally Posted by ABarnett View Post


This is just a quick video of the driver in action. That's only an A140 diode. If anyone wants any I'll do 4x diodes for $60.00 priority shipping included.
But these drivers a nice. Even without a heatsink they barely get warm.
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Old 04-25-2016, 10:29 PM #105
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Default Re: New diode!!! Nubm47-a1

Maybe now?
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Old 04-25-2016, 10:39 PM #106
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Originally Posted by ABarnett View Post
Maybe now?
Yup, workin
The driver come with the pot?

Also how short are the pins on diodes (are they pulled and hrs of use on em if used)

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Old 04-25-2016, 10:50 PM #107
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Default Re: New diode!!! Nubm47-a1

It comes with the pot. That was one I had lying around and I'm going to get some different ones. That pot makes it go from off to full power in about 1/3 of a turn. Its still nice. I've been looking for a driver like this for a while.
They are used diodes. I don't think they have many hours. They haven't lost any strength. The pins are pretty long

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Old 04-26-2016, 12:52 AM #108
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Default Re: New diode!!! Nubm47-a1

So got a block of these today and I am pretty sure what we are looking at is a block of 10 NUBM44 diodes instead of a block of 7 NUBM44 diodes meant for higher lumen projectors.






They do seem to have mad the dome slightly larger on the glass lenses probably to try and shape the beam better maybe because they are more spread out or just an improvement over the old shape.



Added was potting above the pins but comes off easy enough.



Made a video of a fresh NUBM44 and a fresh NUBM47 both using the same three element lens as I can't read over 6.8W on my meter at the moment but have a renewed interest in getting it upgraded to 12V rails so I can read to 20W. Basically operated the same. So did not do it with a G-2. Slight power difference which you get from diode to diode plus you don't really see if the amps are set to 4.50A or 4.59A since the power supply only reads in 100mA increments.

NUBM47




NUBM44



As for the beam shape it is also exactly the same. Here are both focused with G-2 lenses.

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Old 04-26-2016, 01:12 AM #109
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Default Re: New diode!!! Nubm47-a1

Thanks for the clarification DTR, so these go out as nubm44's?
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Old 04-26-2016, 01:16 AM #110
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Default Re: New diode!!! Nubm47-a1

That's good, I was afraid the divergence was going to be worse, I still like 44's, they are sturdy and strong.
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Old 04-26-2016, 01:16 AM #111
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Default Re: New diode!!! Nubm47-a1

these have been around for a while and they are smaller and only 5000mA, I'll check one out but I believe they will do the same with a pot attached>


I just checked and my bad as this driver is either on or off there is no granule increase


Quote:
Originally Posted by ABarnett View Post
I've been looking for a driver like this for a while.
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Old 04-26-2016, 01:56 AM #112
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Default Re: New diode!!! Nubm47-a1

Thanks DTR for the great information yet again. I always appreciate everything you do for this forum.
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445nm 2.2 watts Nichia MS Envy

445nm 2 watt SMP Copper Host
477nm 127 mW 501B
488nm Uniphase #2201-20SLAT argon laser head and power supply >40mW
520nm LaserLands pointer Measures 510nm
532nm LSR532H-1W Laser, LSR-PS-N1 Driver, RS-75-5 P.S. 1300 mW
532nm 200mW Thermostatically Controlled Fan Cooled (Besram) >230mW
532nm 189mW pocket lab laser
532nm lasers X6 100mW-200mW
532nm lasers X4 75mW- 140mW
632.8nm P210 New Laser Tube 0.57mW Melles Griot 05-LMP-827-037 PS
632.8nm Spectra- Physics He- Ne #102-2 4mW heads X2 and #236 power supply
632.8nm PMS He-Ne # 201P/ LPS-115 2mW
632.8nm Siemens HeNe LGK7630S 7.6mW
635nm 1 watt Cyprus II
635nm 1 watt SMP Copper host
635nm 5mW pointer
635nm 100mW pointer
635nm Lifetime17 Mini-camo build 687mW
650nm 65mW pointer
650nm 380mW 501B
808nm 1+W infrared laser
infrared video camera for collimating IR lasers
Ocean Optics USB2000 Spectrometer
Scientech Vector S310 with AC2500 10 Watt LPM
LaserBee II 3.2 Watt LPM
Radiant X4 3.7 Watt LPM
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