Sunburn PHR-803T - pics of the guts

[apex007]

[quote author=apex007 link=1214091930/12#13 date=1214178669]I turned it on, popped some balloons, it was fine. I turned it on, shined it around, it was fine. I turned it on, and it was dead, just a faint purple pattern on the wall. The DrLava drive comes set at the halfway point on the potentiometer. At the point the diode died, I had the pot turned another quarter-turn past the midpoint. I don't have any current measurements.

Anyone know where I can get another PHR-803T diode now that the geeks.com source has dried up?

I want to rebuild this again, and this time I will measure the current the right way, between the driver and the diode instead of at the battery end.

One thing I will say is that wherever it was when it died, I could see the purple beam in daylight. It was faint, but I could see it. It also popped balloons instantly from 20 to 30 feet away.

That was probably around 200mA...
Is 130mA safe?[/quote]

That's the thing, I thought the low-range drlava flexdrive only went up to 150ma. That's why I didn't worry too much about cranking it up. Maybe it does go up to 200ma.

 

[Spyderz20x6]

[quote author=Spyderz20x6 link=1214091930/12#14 date=1214178775][quote author=apex007 link=1214091930/12#13 date=1214178669]I turned it on, popped some balloons, it was fine. I turned it on, shined it around, it was fine. I turned it on, and it was dead, just a faint purple pattern on the wall. The DrLava drive comes set at the halfway point on the potentiometer. At the point the diode died, I had the pot turned another quarter-turn past the midpoint. I don't have any current measurements.

Anyone know where I can get another PHR-803T diode now that the geeks.com source has dried up?

I want to rebuild this again, and this time I will measure the current the right way, between the driver and the diode instead of at the battery end.

One thing I will say is that wherever it was when it died, I could see the purple beam in daylight. It was faint, but I could see it. It also popped balloons instantly from 20 to 30 feet away.

That was probably around 200mA...
Is 130mA safe?[/quote]

That's the thing, I thought the low-range drlava flexdrive only went up to 150ma. That's why I didn't worry too much about cranking it up. Maybe it does go up to 200ma. [/quote]
That doesn't answer my other question... :

 

[Glaserfan]

Apex.. check the B/S/T section before yobresal runs out of diodes. He is selling them fast..

 

[airy52]

I hear airy52 is having a gb that is gonna go pretty quick in the group buy section

 

[wicked1]

[quote author=Spyderz20x6 link=1214091930/12#14 date=1214178775]
That's the thing, I thought the low-range drlava flexdrive only went up to 150ma. That's why I didn't worry too much about cranking it up. Maybe it does go up to 200ma.

When mine was turned 3/4 up, it was at 190ma, so my lava driver definitely goes past 150!!

I thought the same thing, that it topped off at 150, so I turned it up 3/4 of the way w/out a 2nd thought.. Until I was running it at that power for a while.  It seemed way too bright.  Thats when I measured it and found it was at 190ma.

I turned it down, and it's still going strong at 130ma.  
is that safe?  probably not Stick to 100 if you want to be safe.

 

[Jules]

I'm running mine at just under 80ma. I am on diode number two and really really don't want to go to three unless it is a stand alone second UV  laser!

Or you can buy one here http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail?name=425-2697-ND only $1000.00

Very  nice build though! I also found harvesting my second to be much faster and cleaner. Live and Learn

 

[Spyderz20x6]

[quote author=apex007 link=1214091930/12#16 date=1214178998][quote author=Spyderz20x6 link=1214091930/12#14 date=1214178775]
That's the thing, I thought the low-range drlava flexdrive only went up to 150ma. That's why I didn't worry too much about cranking it up. Maybe it does go up to 200ma.

When mine was turned 3/4 up, it was at 190ma, so my lava driver definitely goes past 150!!

I thought the same thing, that it topped off at 150, so I turned it up 3/4 of the way w/out a 2nd thought.. Until I was running it at that power for a while.  It seemed way too bright.  Thats when I measured it and found it was at 190ma.

I turned it down, and it's still going strong at 130ma.  
is that safe?  probably not  Stick to 100 if you want to be safe.[/quote]
Gonna run mine at 120mA

 

[TheMonk]

[quote author=airy52 link=1214091930/0#5 date=1214101710][quote author=Glaserfan link=1214091930/0#4 date=1214100892]How high did you turn it up? There are quite a few of us running at notably high current right now..

Also make sure your battery is not low(near 2.5v).. my open-can red with a flexdrive goes dim or shuts off altogether around 2.55-2.62v battery voltage.

How high how high!!!! We want to know![/quote]

After 125ma I stopped measuring and went by temperature instead, which didn't work out so well. [/quote]

If you want to know the current mA your driver was set to, you can hook a CREE LED and measure it. This is how I set the current before connecting the LD. I think you pass 200mA.

BTW I really like your heat sink ideal. [smiley=thumbup.gif]

 

[apex007]

If you want to know the current mA your driver was set to, you can hook a CREE LED and measure it. This is how I set the current before connecting the LD. I think you pass 200mA.

BTW I really like your heat sink ideal. [smiley=thumbup.gif]

That is a fantastic suggestion, thank you very much as I don't want to kill another diode!

I decided that I am going to rebuild this unit, but not as a blu-ray.

It will look the same, but contain an open can LG 22x dvd diode in a Meredith housing with glass lens running at 400ma on a high range drlava flexdrive. I've found that I'm still more fascinated by sheer power rather than wavelength. My goal is a pocket sized 250mw to 300mw burner. The parts have been ordered hopefully I should have this finished in a week or two.

I still have the very nice 10mw blu-ray that TheMonk built. I have plenty of fun making things glow with that.

 

[TheMonk]

[quote author=TheMonk link=1214091930/12#23 date=1214201061]

If you want to know the current mA your driver was set to, you can hook a CREE LED and measure it. This is how I set the current before connecting the LD. I think you pass 200mA.

BTW I really like your heat sink ideal.  [smiley=thumbup.gif]

That is a fantastic suggestion, thank you very much as I don't want to kill another diode!

I decided that I am going to rebuild this unit, but not as a blu-ray.

It will look the same, but contain an open can LG 22x dvd diode in a Meredith housing with glass lens running at 400ma on a high range drlava flexdrive. I've found that I'm still more fascinated by sheer power rather than wavelength. My goal is a pocket sized 250mw to 300mw burner. The parts have been ordered hopefully I should have this finished in a week or two.

I still have the very nice 10mw blu-ray that TheMonk built. I have plenty of fun making things glow with that.[/quote]

Good thing you have a flex heat sink to accompany different size modules.

The Diode used in the AA was the 8011, capable of output so much more power, PM me if you want to get more power out of it.