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View Full Version : Where to buy cooling fans?


sandman12
01/09/2005, 07:41 PM
I need 3"-4" I saw some on ebay a couple days back but now there gone and i cant find them.

Thanks
James

vapovick
01/09/2005, 07:47 PM
www.tigerdirect.com


I bought 2 120mm fans for around 3.99 each, they work great..

sandman12
01/09/2005, 07:50 PM
Thanks. What do i need to run them (ac adapter?) do they sell it? IF so is it ready to be plugged into the fans or would ineed to mod it?

Thanks

vapovick
01/09/2005, 08:40 PM
you will need to mod it, not a big deal, go buy a power adapter from radio shack. its about 10.00 I will post a pic of my fans on monday, and the power adapter..


./hth

sandman12
01/09/2005, 08:48 PM
ok thanks.

Bugs825
01/10/2005, 05:10 AM
i reciently bought 150 fans (40mm) size to make kits to sell. I got them for a crazy cheap price and if you could use the smaller ones i can hook you up. as far as ac adapters go, radio shack is good for local. But there are some web sites that have them for $2.00. let me know if you need the sites. Just make sure that you get an adapter that is powerful enough for the fans you want to power.

1 A = 1000 mA
300 mA = .3 A
.008 A = 80 mA

Nathan

sandman12
01/10/2005, 06:08 AM
40 mm would be too small. Thanks for the info..

vapovick
01/10/2005, 12:25 PM
http://webpages.charter.net/bluemonkey1/Pics/fan.jpg


http://webpages.charter.net/bluemonkey1/Pics/power.jpg


./hope this helps...

sandman12
01/10/2005, 01:12 PM
How many adapters do i need to power 2 fans? Does radio shack sell the male/female plugs too?

vapovick
01/10/2005, 01:42 PM
just one of those for the two fans, I cut the wire and spliced them together. I belived I wired them in series..


<fan1> + <fan2> + + <power apapter>
<fan1> - <fan2> - - <power adapter>

./hope that helps.

sandman12
01/10/2005, 01:44 PM
so i can just join the 2 fans and adapter all at one point?

Thanks

Bugs825
01/10/2005, 02:39 PM
if each fan is .26 A that is 260 milliamps (mA)

so you could run 5 fans off of a 1500mA (1.5A) ac adapter.

if you only want to run 2 fans you could use a 600 mA ac adapter.

As far as connectors.... cut them off. I would use heat shrink tube to seal out all water. slide it on, twist them together, heat it, and don't worry about it.

Nathan

thrlride
01/10/2005, 03:11 PM
You could get a pair of 120 mm 12volt fans at compusa and then the adapter shown from radio shack. That is what I have. They are quiet and move a good bit of air.

calonzo
01/10/2005, 03:24 PM
Originally posted by vapovick
just one of those for the two fans, I cut the wire and spliced them together. I belived I wired them in series..


<fan1> + <fan2> + + <power apapter>
<fan1> - <fan2> - - <power adapter>

./hope that helps.

From your nifty diagram, you wired them in parallel which is correct. Wiring all the + together and all the - together will give 12V to each fan. The amps required by the power adapter will be double that of a single, though.

Chris

stevemc
01/10/2005, 04:57 PM
James, if you are worried about low voltage adaptors and such, get a 110 volt fan. I got several 110 volt fans at Radio Shack. They might cost more though. No problems for years. I have one hole for the fan and one hole for the exhaust on the other side, and no other vents. It works like a champ. I have tried to convince people to use fans to keep it cool instead of a chiller for years, to the point I dont try anymore. I cover the inside of the hood with aluminum foil coated foam about 1/2inch thick, I think its called Celotex. Home Depot. I glue it in and seal the edges with shiny aluminum duct tape. It does not raise the temp hardly at all. The foam keep the hood from turning into a heat sink. The fan blows in cool air and the opposite side hole exhausts the heat. See Ya, Steve.

calonzo
01/10/2005, 05:08 PM
Originally posted by stevemc
James, if you are worried about low voltage adaptors and such, get a 110 volt fan. I got several 110 volt fans at Radio Shack. They might cost more though. No problems for years. I have one hole for the fan and one hole for the exhaust on the other side, and no other vents. It works like a champ.

I bought a 120V RadioShack fan. It does work, but it sounds like an airplane. :o

Chris

sandman12
01/10/2005, 05:19 PM
Thanks everyone. I think iam going to get the 120mm fans from the site listed above and get the adapter from radioshack.

Steve, I have very very little room around the bulbs and stuff so i dont think i can use the foam if i understood right but iam going to use the shinny duct tape. I plane to have one fan on the left side and one on the top middle.

Thanks
James