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Old 07-13-2011, 10:27 PM #17
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Default Re: Hothead 445 :(

I can assure all of you there is no short on my end!


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Old 07-13-2011, 10:38 PM #18
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Default Re: Hothead 445 :(

then your power supply is bad, or your diode is bad. check each one individually.

hook up another LD to your power supply
or
hook up a different power source to you LD
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Old 07-13-2011, 10:42 PM #19
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Default Re: Hothead 445 :(

Its definitely the diode, I use the power supply for testing all my diodes, and it did the same thing put in a portable build.
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Old 07-13-2011, 10:51 PM #20
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Default Re: Hothead 445 :(

It sounds like its next host will be a large round bin with a plastic liner unfortunately.
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Old 07-14-2011, 03:38 AM #21
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Default Re: Hothead 445 :(

i'm not trying to be a dick, but if you know it's the LD then you know there is nothing to be done.

you should never be too quick to shut out diagnostic ideas. there can easily be something skipped. i had a problem where i was adamant that my batteries were good because they were reading proper voltage. and for days i was scratching my head. it turned out my batts were bad. the read voltage but had no current.
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Old 07-14-2011, 04:33 AM #22
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Default Re: Hothead 445 :(

Ben, be careful hooking your power supply directly to the pins. It can be done (I do it often), but start your current at 0 then ramp it up.

Some of those supplies have a nasty spike if powered on at the desired current. Just a little friendly info.
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Old 07-14-2011, 05:04 AM #23
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Default Re: Hothead 445 :(

Thanks for the help guys. I hooked up the diode to the bench supply like I always do, and it got hot, after that I hooked it up to a jib drive and it had the same issue.
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Old 07-14-2011, 05:08 AM #24
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Default Re: Hothead 445 :(

is that the same coleman max your selling?
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Old 07-14-2011, 05:14 AM #25
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Default Re: Hothead 445 :(

Quote:
Originally Posted by joshshermannn1 View Post
is that the same coleman max your selling?
I, as well, was wondering if this was the diode in that setup.
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My laser list has become way too big; I'm listing some of my favorites out of my extensive collection.
615mw 405nm/12X Spiderfire X-03
148mw 405nm/GGW in my "Hotlight-Saber" host
1920mw 445nm River Rock custom
1530mw 445nm Yobresal
1360mw 445nm Qumefox Sipik
800mw 445nm WL Arctic Spyder S3
240mw 473nm CNI Labby
8mw 473nm CNI Labby
528mw 532nm Lazerer Cannon
310mw 532nm Firedragon III
300mw 532nm CNI Labby
180mw 532nm SKY Laser
4x 147-267mw 532nm Waterproof
900mw 635nm in Temporary Finned Labby Sink
Several 635nm diodes awaiting a build
500mw 650nm Dual LPC-826 Labby
251mw 650nm/LPC-815 Ultrafire U-501B
Several 685nm diodes awaiting a build
3W 808nm diode awaiting build

Kenometer w/ Coherent Thermopile 10W
LaserBee 2.5W USB LPM
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Old 07-14-2011, 05:37 AM #26
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Default Re: Hothead 445 :(

Yes it is the same diode.
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Old 07-14-2011, 06:21 AM #27
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Default Re: Hothead 445 :(

Cant stop laughing, Sunshine Zombie!
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Old 07-14-2011, 03:15 PM #28
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Default Re: Hothead 445 :(

You can try to recleave the facets, that ought to fix the problem, although your lasing efficiency will drop like a rock and you will see shorter wavelength.

Perhaps the bond wires you are using are too thin. You can replace those with a larger gauge wire.

Also, you may have to redeposit the top layer to homogenize the cavity current injector.

Don't forget to test the flux capacitor too.
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Old 07-14-2011, 03:59 PM #29
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Default Re: Hothead 445 :(

Quote:
Originally Posted by BShanahan14rulz View Post
You can try to recleave the facets, that ought to fix the problem, although your lasing efficiency will drop like a rock and you will see shorter wavelength.

Perhaps the bond wires you are using are too thin. You can replace those with a larger gauge wire.

Also, you may have to redeposit the top layer to homogenize the cavity current injector.

Don't forget to test the flux capacitor too.
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Old 07-15-2011, 03:22 PM #30
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Default Re: Hothead 445 :(

From the testing I've read there is a 3% chance of getting a zombie. Thats roughly 3 zombies per 4 projectors. So its not unheard of. Unfortunately you shouldn't use it, because it wont last long, and the heat issue may impact the battery.
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