Electronics experts needed

[fastfire]

I want to get an old fan used in a computer for a project, are they 110v? is my question.
I'm thinking they may be reduced voltage fer some reason.

[SeabeeMan]

Generally they run on one of the +12v legs of the power supply. Power supplies in computers put out +3.3v, +12v, +5v at a high and a lower amperage, and -12v on the various rails.

[BrassMagnet]

I want to get an old fan used in a computer for a project, are they 110v? is my question.
I'm thinking they may be reduced voltage fer some reason.

You can buy many types of fans. Computer or otherwise. Fans which are computer sized can be purchased for use with AC or DC. You can also pick the Cubic Foot per Minute (CFM) and operating voltage. Lots of size variations are also available.

[Lee]

Many have a label on them stating voltage, etc. If not, voltmeter will tell what voltage is "going" to the fan. As stated above, 3.3/5/12 volts could apply.
Google is your info friend.
Evil-bay is your supplier.
So is Amazon.
Tiger Direct.
NewEgg.


What they all said above ............................................

[fastfire]

OK, I ain't no electronics whiz.
I'll need a hand for this.
I can find case fans on e-bay ok but I need one that I can use 110v 2" dia.
They say 3 or 4 pin that doesn't help me.

[blpenn66502]

The three and four pin description indicates the type of connector the fan uses to plug into the computer mother board, either one is going to be 12V DC. What kind of project are you trying to do?

[N4AUD]

Here you go- http://www.ebay.com/itm/like/301028972602?lpid=82

[Hardcast416taylor]

I acquired quite a few of these in different sizes when an electrical repair shop shut his doors. These fans usually have a type of screen protector that goes on either side or both sides. You can also cut a square piece of storm door window screen and attachet it for a measure of safety when running these fans in the open or around curious pets. Don`t ask me how I know about the safety factor.Robert

[fastfire]

Thanks N4AUD I got 2 on the way.
What am I using them for, Can't tell Top Secret!

[RED333]

Thanks N4AUD I got 2 on the way.
What am I using them for, Can't tell Top Secret!
Your little secret will be safe with us, the NSA will never know. LOL

[fastfire]

Your little secret will be safe with us, the NSA will never know. LOL

Yes, I know anything posted on the internet is totally safe:veryconfu

[garym1a2]

Go digi-key or mouser and you get better quality and a data sheet.

[bangerjim]

I have several 120 VAC muffin fans from 4" to 9". They are fairly common. Check the internet and make sure they are 120v AC......not 12VDC.

No big whoop.

bangerjim

[lavenatti]

They usually have a sticker right on the fan with the voltage.

If 12VDC won't get it spinning I'd try 120VAC, but I'd do it outside.:)

Most (not all) will be 120VAC when they have two black wires and 5/12VDC when they have one red and one black wire.

[BrassMagnet]

They usually have a sticker right on the fan with the voltage.

If 12VDC won't get it spinning I'd try 120VAC, but I'd do it outside.:)

Most (not all) will be 120VAC when they have two black wires and 5/12VDC when they have one red and one black wire.


I have found their wire color codes vary a tremendous amount when they are bought from the low bidder.