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Old 12-27-2008, 01:30 AM #1
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Default Dorcy Jr blue ray help

OK guys I apologize *for being such a noob ;D
But i just ordered the dorcy jr kit from darkhorse, and a 405nm PHR-803T Blu Ray Laser Diode
about the the drlava's flex drive witch one do i get im confused on the present current one and the regular one witch do i get ?
I plan on running this laser at 110ma.


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Old 12-27-2008, 01:32 AM #2
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Default Re: Dorcy Jr blue ray help

Quote:
Originally Posted by elitesniper
OK guys I apologize *for being such a noob ;D
But i just ordered the dorcy jr kit from darkhorse, and a 405nm PHR-803T Blu Ray Laser Diode
about the the drlava's flex drive witch one do i get im confused on the present current one and the regular one witch do i get ?
I plan on running this laser at 110ma.

If you already know that you want to run it at 110mA, then get it pre-set at 110mA

Peace,
dave
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Old 12-27-2008, 01:41 AM #3
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Default Re: Dorcy Jr blue ray help

so i just get the one that is 21 dollers right?
thanks
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Old 12-28-2008, 06:28 AM #4
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Default Re: Dorcy Jr blue ray help

Quote:
Originally Posted by elitesniper
so i just get the one that is 21 dollers right?
thanks *
No, preset ones are 25. You can set them yourself you know using a dummy load: http://rkcstr.nfshost.com/index.php?...762d02011cb5fc
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Old 01-01-2009, 02:32 PM #5
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Default Re: Dorcy Jr blue ray help

i am confused about the dummy load...How do you know what you set the current to when hooked up to it? I know this sounds prolly stupid. Sorry in advance hah
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Old 01-01-2009, 03:13 PM #6
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Default Re: Dorcy Jr blue ray help

Quote:
Originally Posted by ccamory
i am confused about the dummy load...How do you know what you set the current to when hooked up to it? I know this sounds prolly stupid. Sorry in advance hah
The dummy load just "pretends" to be a diode.. You can measure the current running through the resister on the dummy load, and then adjust the flexdrive to set it at whatever you want. If you hook your flexdrive up to power without a diode, or dummy load, you will most likely fry it.
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Old 01-01-2009, 03:19 PM #7
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Default Re: Dorcy Jr blue ray help

Usual dummy load picture follows.... :

Regards rog8811
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Dorcy Jr blue ray help-test_load01_003.jpg  
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Old 01-01-2009, 03:19 PM #8
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Default Re: Dorcy Jr blue ray help

Quote:
Originally Posted by hevnsnt
[quote author=ccamory link=1230345011/0#4 date=1230823962]i am confused about the dummy load...How do you know what you set the current to when hooked up to it? I know this sounds prolly stupid. Sorry in advance hah
The dummy load just "pretends" to be a diode.. You can measure the current running through the resister on the dummy load, and then adjust the flexdrive to set it at whatever you want. *If you hook your flexdrive up to power without a diode, or dummy load, you will most likely fry it.[/quote]


You need to use a multi-meter to measure the "voltage" across the resistor. mV = mA You adjust the driver until your multi-meter reads the amount of mV you want in mA. If I want my 6X to get 200mA of current, I adjust the current through the dummy load so that I am measuring 200mV across the resistor.

Peace,
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