DIY fan controller

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2 Jan 2014
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85
I created an almost DIY fan controller that comes out of the grommet on the back of my case.
jrbnk5K.jpg

R8JTgIV.jpg
 
Nice. Those images are massive though. Isn't there a forum limit on them?

What's it doing then.

220 ohm resistor into a 5k potentiometer into a medium power transistor, something like a BD135 perhaps?
What sort of voltage range do you get on it?

Did you do the PCB yourself?
 
Nice. Those images are massive though. Isn't there a forum limit on them?

What's it doing then.

220 ohm resistor into a 5k potentiometer into a medium power transistor, something like a BD135 perhaps?
What sort of voltage range do you get on it?

Did you do the PCB yourself?

Sorry, can you resize a PIC in the tag?

Sorry if I mislead you with the title :\ it is a PCB from a fan controller that used to fit into a slot at the back of the pc but because I only have 2 slots and they are both full I had to mount it coming out of the grommet at the back. This is more of a temporary solution until I get new fans and a new case because these fans are very loud at (or near) max rpm but I have them high when geming to keep my system cool
 
Ah OK.

I did something similar with a led switch and a grommet on mine before I made a more permanent solution.
 
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