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Old 08-14-2008, 11:32 PM #1
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Default MXDL-Switch with 803T at 125/173 ma *=)

Hello all ! *
Here is a new MXDL project with a 803T which can be set at 125 ma (default current) and at 173 ma, through a miniature switch (found anywhere)
I added a switch to play with 2 value of current instead of set the diode directly at 173 ma, beacause i remenbered one phrase from IgorT :
Quote:
The third freak was the weakest of the three, so it lasted the longest. I even had it on for 20 minutes at a time several times, and again last night. But as i said, i noticed some small power loss before that, and this morning, when it was cold, and the power was at it's highest, it just died at powerup.
So i have an idea. Why not run a 803T in a safe current (125 ma) and after few second when it get a little warm, push a button to be at higher current ? it won't stress the diode with a high current when power on, if we go with one step.
Dunno if it will last longer with this setup, we will see ! *

We can see the increase of power with match burning ( see the video below this post) quite impressive *
Here is the I,Mv plot for this diode (did with my solar cell setup), i just harvested it from a sled






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Old 08-18-2008, 03:15 PM #2
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Default Re: MXDL-Switch with 803T at 125/173 ma *=)

nice idea! what is that black spongy looking stuff at the top?

it would be cool to machine a heat sink and drill a hole down the side and put the switch there so it has a super clean look. to relocate the switch to the side


great idea though
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Old 08-18-2008, 06:10 PM #3
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Default Re: MXDL-Switch with 803T at 125/173 ma  =)

Whey nice idea hopefully it will allow more power to be squeezed from the 803T !!

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Old 08-19-2008, 09:28 AM #4
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Default Re: MXDL-Switch with 803T at 125/173 ma *=)

Quote:
nice idea! what is that black spongy looking stuff at the top?
thanks !
In fact, it's some kind of &quot;plastic felt&quot; i like his aspect
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