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Need recomendations for cheap and quiet 80cm fan for cocktail cab

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Green Giant:


--- Quote from: rackoon on August 02, 2007, 09:05:17 pm ---So I can just daisy chain the six fans together and put the pot before the fans on the lead?

Yo greengiant whats the 100K 10k and 1k mean?  :dunno

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Those are the resistance values of the potentiometer, 100000 ohms, 10000 ohms, and 1000 ohms.  They are basically a variable resistor, so you could send full power to the fans or adjust them up to the value of the pot.  Essentially the same thing as a resistor, but you will be able to select the speed you want.  The number of turns is important because if you just want to supply 1500 ohms resistance using a 1000000 ohm pot, you will only want to turn it half way on a 25 turn pot.  Lots of them out there are only 1 to 5 turns.  Makes accurate adjustment very difficult.

However, daisy chaining the fans together would probably slow the speed down on them, but you might have better results if you connect them in parallel.  If you connect them in series, the last fan will spin slower than the first.  In parallel they should all spin at the same speed.  A pot in series before the fans should be able to control the speed.  Just hook them up and give it a try.  The fans should be pretty robust unlike led's.  If you are pulling the juice for them from the 5V line in your computer, you shouldn't have to worry about blowing them without a resistor/potentiometer hooked up.

ARTIFACT:

(don't want to hijack thread ... but I have a very similar question)


--- Quote from: xmenxmen on August 03, 2007, 05:12:19 pm ---if not too late and you can make the hole bigger, here's 120mm quite fan.  I use them in all my pc and they are super quite and give about the same cfm as speedy 80mm.
http://www.xoxide.com/xoxide-120mm-silent-fan.html
Only only 3.99 each right now too...
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That's excellent, thank you for posting this info.

Do you know if these guys also sell power extension cords with the same connectors (male > female)?
If I run 2 of these in my cab (behind/low to push cool air in, top to push hot air out), I'll need several feet of that kind of cable with connectors

right now I have HUGE openings in the back of my cab (including right above the TV, and next to the PC case, which are where most of the heat is) and am wondering if I even NEED fans at all

thanks
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