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Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Drivers, Test-load, Power Supply, & Batteries



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Old 07-22-2011, 06:26 AM #1
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Default Looking for a Driver!!

Hello LPF!
I am currently working on building my first laser. I know everything I need and what to. I'm using a PHR 803t, and another PHR 805. Aixis housing of course. Using a 9V power supply and purchasing a dummy load to set my current to 100-110mA. Only problem I am having is I cannot find a Rkstr adjustable driver anywhere that is in stock! Any suggestions to help find a site or another driver that works?

Thanks LPF!


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Old 07-22-2011, 09:16 PM #2
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Default Re: Looking for a Driver!!

Modwerx has a few Groove 2 drivers in stock. It's a linear driver like the rkcstr but only has a 1.2V dropout.
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Old 07-22-2011, 10:34 PM #3
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Default Re: Looking for a Driver!!

Quote:
Originally Posted by Kevlar View Post
Modwerx has a few Groove 2 drivers in stock. It's a linear driver like the rkcstr but only has a 1.2V dropout.
Well I need 9V power. Is there anywhere else
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Old 07-22-2011, 10:43 PM #4
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Default Re: Looking for a Driver!!

Oh. Well I guess this might work. Does it come with +,- wires?
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Old 07-22-2011, 11:02 PM #5
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Default Re: Looking for a Driver!!

It will work great and no, it does;t come with wires but the guy who owns/runs that site is a LPF member and very nice. If you ask, I'm sure for a few extra dollars he will solder some lead wires on the driver for you.

The PHR diodes need ~6V and the driver needs 1.2V. With a 9V power supply that leaves you with ~1.8V left over which the driver will dissipate as heat. It should work fine with your set-up.

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Old 07-23-2011, 09:05 PM #6
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Default Re: Looking for a Driver!!

Okay thank you Kevlar
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