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afterdawn.com > forums > general discussion > all other topics > how big of a resister do i need?
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How big of a resister do i need?
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tubbsey88
Junior Member
_ 		19. August 2009 @ 00:39 _ Link to this message    Send private message to this user   
I have a computer PSU that I use to power my external fan for my laptop and to charge my iRiver. Computer PSUs have a 3.3v line and i wanted to run my headphone noise canceling function power from that 3.3v but i wanted to know what size resistor i would need to prevent that extra .3v, or would that small amount of voltage not make enough of a difference to worry about
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ddp
Moderator
_ 		19. August 2009 @ 16:49 _ Link to this message    Send private message to this user   
that .3v is most likely alright as usually the rated voltage is +/- 10%. if have a multimeter then check to see what the 3.3v is actually showing for voltage.
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tubbsey88
Junior Member
_ 		20. August 2009 @ 11:58 _ Link to this message    Send private message to this user   
mkay, i wish i did have a multimeter, but thank you
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