Electric fan help
 

Hey I am building a canopy for my tank which is going to have 2 electric fans. The fans are 12V, 50/60mhz, 0.24mA. I am wondering what kind of transformer I need to find so I can plug these bad boys in. Perferably wired in parallel with one tansformer. Thanks

Are you sure about the amount of current drawn? It just seems too small for most fans I've seen. Are those ac fans by the way or dc?

Thats what is on the lable. I believe they are DC. They are about a 5" computer fan.

transformer
 

There is something wrong in the label.

At a Frequency of 60 mega hz/second, only IC or... can see the pulse. For the fan? It looks as if as dc.
Again, at a currency of .24 mA (1/1000 Amp) a fan can not even make a turn ( a LED consumes a lot more than that.)

So, i think this label belongs to an IC chip or ...

Suppose it is 12v .24A. then each fan is about 3w. For parallel connection, you need a minimum 2x3w=6w transformer.

Therefore, a 10w 12v DC Transformer is good enough.

Go to the Value Village or Thrift Store buy two AC to DC transformers; one with 12v-10w and the other with 9v-10w.
Try the 12v first. If it is too noisy, try the 9v then.
They are cheap, under $5 each.

For a DC fan about htat size, .24A (not mA) sound about right. Computer speaker power supplies are usually 12V and big enough.

It's too bad your not closer -- I have a box of 12VDC 1A transformers that I use for fans and LED drivers that I give away to anyone that needs them :)

Hum I very well might be wrong about the mA. I will have a look at the few transformers I have (from various phones, motors...) if not now I know what to look for. Can I try Radio Shack?

You can try anywhere you feel convenient. I told you those stores because they're cheap. You can look at the Pawn shops and Flee market on 118 Ave .

Ooo theres a pawn shop on 23rd ave that I get vids from. If they come up empty theres a Value Village a few blocks from there :) Which areas of the store are they located?

Sorry, I left Edmonton for Vancouver 10 years ago. Allthing has been changing

LOL yeah theres still pawn shops on 118th ave! I live on the south side of Edmonton thou, unfortunatly not a whole lot of pawn shops in the 15km radius of my house except the aftermentioned places :) Thanks for the help, now I have some treasure hunting this weekend :lol: