My freaky PS3 diode..*Update :D *

I finally got everything around to build my box style BR..PsxBoy sled(EDIT-it is a PS3 diode), 38mA rkcstr driver, and of course the module and project box/etc..

I harvested the diode(carefully-wrist strap and all), placed it in the Aixiz module, and hooked it up to the driver.. It lased, but quite dim compared to pics I have seen of them..

My first thought was I killed it.. but then I remebered reading on the net that some of these "suck up" 90mA!.. I decided to redo my driver for 50mA.. It was a bit brighter..but still not impressive or matching what I have seen and read..

So... with a little bravery, I redid the driver again, with both the 33ohm and 25ohm resistors, and ended up with 87mA.....

Lo and behold it lights up seemingly like it should.. at 87mA! Wayy higher than usual.. I thought about trying 100mA but I figure I will kill it- for the time being this is the only BR diode I have..

The dot is about the same brightness as a 5-10mw red on my paneling wall. On white paper(of course) it is almost equal brightness to the dot from my 280Mw or so red opencan. The beam can be seen in the dark fairly well with no smoke, and during the day quite nicely with smoke.. This BR will NOT burn anything, just barely manipulates thin black plastic- the print on a Walmart bag. I do not have a meter to test it..

I'll add some pics here.. first time submitting pics so i'll proly screw it up LOL.

Thoughts/opinions anyone? What do you think is up with this diode, and i am at normal output or lower?

1st pic- head on(almost) with my red 290MW(est.) The black tape on the BR is to hold the momentary button down lol

Re: My freaky PS3 diode..

2nd Pic- Dots from the BR and red on white paper.

Re: My freaky PS3 diode..

So is this an xbox diode?

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3rd pic.. Both dots on my paneling wall.

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Last pic- daytime/Lights on beamshot. With a breath of cigarette smoke LOL.

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Hmm.. yes I know- resize/crop the pics next time [smiley=embarassed.gif]

Thanks in advance for any advice

Re: My freaky PS3 diode..

Nope.. this diode is from a PS3 sled from psxboy... :-/

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Upload your pics to a website like photobucket and use the [ img]url of your pictuer[/ img] things to get multiple pics on one single post.

Re: My freaky PS3 diode..

Glaserfan said:

Nope.. this diode is from a PS3 sled from psxboy... :-/

Click to expand...

You should just use a pot and start from 0mA and up. Stop once the LD gets bright and then add 10 more mA.

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Cool.. will do that next time(photos) I plan on doing a self review on both of my lasers

I had thought of the pot idea.. but the only driver I had was the rkcstr- which i bought for this purpose..so i did what i could with available supplies. My next BR will be an 803 diode with a flexdrive..

Re: My freaky PS3 diode..

There are a few freak PS3 diodes which need a lot of current to start lasing, but I don't know if this is one of them, you'd have to build yourself a DDL driver and test the diode in the way I previously described. Other wise, get more combinations of resistors so that you lower the current and see if the diode gets dimmer, if it doesn't than it means it's being overdriven. You could also hook up a pot to rkcstr's driver and make everything a lot less complicated.

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dont despair if it doesnt look as bright as you may have expected. even my 6x bluray makes a disheartening dim dot on non-fluorescent surfaces such as wood and some plants. once the beam hits smth fluorescent, like bleached paper and white fabric, the room blooms in bright blue.
i have observed that my digital camera easily makes out the beam in a daylight-lit room whereas i dont...
as of burnng, try focusing the dot down to its smallest diameter. this way mine issued smoke from anodized aluminum. Reds do it, too, but the bluray is barely 90mw as opposed to 250mw. i attribute this to the finer dot blurays can make.
Also, dye slightly some water with a yellow fluorescent text highlighter and shine the beam thu it. White 1955 vintage wine also works. cheers.

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Cool advice Thanks!

It does do quite well aiming at white fabrics/blacklight posters in the dark-it lights the room pretty decent.. The beamshot actually is a quite accurate representation of what was actually seen.. took some tweaking of my A650's manual controls, but I managed to get it right

Any ideas on why this PS3 diode takes so many mA's?

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I would do as Chido suggested - build an adjustable driver and gradually ramp up the current till lasing occurs and then a tad more. For all we know, you could be overdriving/kiling yours as we speak. As this happens, it is going to need more and more current to retain its power until it becomes a what is known around here as 'zombie', sucking tens of tens of ma only to spew a few mw of purple.

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Hmm.. I was afraid of that... so these wont die out all at once.. they die slowly. It did get brighter with each jump, and is still the same vizibly after about an hour of runtime..

Without the adjustable driver I am stuck for now.. what pot would be good? For now I could try two 33's and probably end up with 65-70mA and see if it dims...

Re: My freaky PS3 diode..

A 1/2 watt 50 ohm pot should do the job.