8X Diode Murder fund

[IgorT]

Did you not read my original reply to you?!? I spent like half an hour writing that!
Maybe i try too hard, and then people shun away from reading? :undecided:




Check out this for now:

This is my Laser Power Meter, connected to my Diode Analyzer v1, at the end of plotting the 8x laser i made for FrancoRob....

In the meanwhile the Diode Analyzer also has a temperature display in v2.

I use it to create P/I/V plots of diodes all the time - it was made to make plotting easier, safer and faster all at the same time!

It has two pots for "hand-plotting", one sets the max current, the other then adjusts from 0-100% of this current... The two displays show If (forward current and Vf (diode forward voltage at that current).

The Imax pot is basically a sort of safety, because the Iadj pot can't possibly go higher than the max set by the Imax pot.

This allows me to safelly turn the pot with the diode attached!

In the new version a third display also shows the temperature now..


The two switches - the first switches between an internal "dummy load" and the diode, the other switches between 0.7A and 2A ranges of max current...


Anyway that's the Diode Analyzer (aka OmniDrive)...



The new Cycler Circuit was made to torure diodes by simulating "average" laser use, turning the laser ON for a minute and OFF for a minute (adjustable by a pot)..

At the same time a photo-transistor is blasted aagainst by the laser, and triggers a counter. The counter then in effect counts the minutes (or whatever the cycler is set to) and displays them on a big LED display.

When the diode dies, the power drops to a a few mW or less, so the beam does not trigger the photo-transistor anymore, the counter stops counting (or a digital timer stops timing)

All this is completelly battery powered for total ESD protection!


Eventually all three will also be connected to a computer for total interconnectivity, and control from a program i will write for this purpose.

At the moment only the LPM connects to the computer (for power stability graphs) while the Diode Analyzer can connect to the meter, so the meter also sends current data to the computer..

This is how i make those PIV graphs....


The plots on the other hand tell us what power comes out of the diode at what current (the violet line), and what the diode forward voltage at that current is (the blue line)...


I'll have to dress up the Cycler in a nice box and take some photos, cos it's still in it's raw state right now (nekkid).


That's my analyzing equipment.

 

[IgorT]

Oh damn, my LPM shows signs of water damage in that photo!

The label was already ruined when i did that, need to make a new front-plate label... :yabbem:

 

[Tabish]

$11 USD per person is a waste? I don't think that's too much and you get a fully PIV plotted PHR diode for it, which is a normal price...


Normally you'd only get a sled for this money. But PHRs are cheap, and for $16 i can select a high wavelength freak, again with a full printed PIV plot of your diode included in the package!


I can ship to Canada for $3 with Priority Airmail... You don't even have to pay me for shipping, just donate the shipping money, and you get a diode!

If it makes ANY difference on your decision i can ship with regular mail for free!


.............................................

Why? Because as you said, they are different, each diode is completelly individual, even tho the only differences are the amount of imperfections in the die..

If they are both tested simultaneously under the same exact conditions, we will also learn another thing - how consistent they are!


I do want some feedback on my test protocol proposals and ideas, but i will post a new thread for the test itself!

Thanks for clearing everything up. Lots of good info in that post
Btw, check your PMs pls.

 

[bryce007]

Thanks for clearing everything up. Lots of good info in that post
Btw, check your PMs pls.

I can't believe you quoted that whole thing :crackup:

 

[Tabish]

I can't believe you quoted that whole thing :crackup:

Hahaha, never realized how long it was.

WE SHOULD DONATE FOR A 3RD 8X

If we do, I can donate 30-40 at least. Maybe more.

The results should be very accurate I assume with 3 murders :crackup:

 

[jayrob]

That's all it would take, the first donation...

Then others will see that the ball is rolling. That's why I was fast to start this off yesterday!

 

[IgorT]

Could you edit your post and shorten the quote, Tabish?

No need to quote that entire long post!

 

[bryce007]

That's all it would take, the first donation...

Then others will see that the ball is rolling. That's why I was fast to start this off yesterday!

I guess that could potentially be three members already. Tabish, CC, and lasersbee

 

[IgorT]

I really don't think a third diode is required for murdering...

Two are reasonable, more is... Hmm, i don't know...

 

[Tabish]

Could you edit your post and shorten the quote, Tabish?

No need to quote that entire long post!

LOL. Done. Thought it woulr be funny to quote the whole thing rofl.

Can you check your PM's pls!

 

[Jaseth]

Oh damn, just when I find my Google Checkout PW on a post-it under a pile of old knives and torches, you have already made it.. But great going guys! I am really looking forward to seeing the results.

Let me know if you need funding for another diode, and any time you feel like brutally murdering a 12x just PM! Now I have the account open I can donate within minutes when needed

Thank you for everything Igor, Dave, and all those who contributed!

Seb

 

[bucken]

Igor,
Am opting for a discount on future 8X purchase... Donated $20, earlier... Gotta start saving...

 

[gotwake424]

Wow i thought we would only get enough to get one LG 8x But no TWO!!!

Maybe we should start a third one

 

[bryce007]

wow, 179 posts in 24 hours. That's gotta be a record!

 

[Tech_Junkie]

Hey how about handing some repz out to all that contributed?

I don't want any, but I'm sure others would appreciate it. op:

 

[daguin]

wow, 179 posts in 24 hours. That's gotta be a record!

Y'all know that I did this just to artificially inflate my post count, right?

Hey how about handing some repz out to all that contributed?

I don't want any, but I'm sure others would appreciate it.

I'll get to this later tonight. I gotta run to the Post office now

Peace,
dave