A fan in a bass amplifier has gone out and is 24v and difficult to find. i was wondering if it could be replace with a 12v?
2007-02-25 10:23:49 · 5 answers · asked by Brent B 2 in Consumer Electronics ➔ Other - Electronics
Don't replace a 24 V fan with a 12 V fan. The motor will overheat and burn out. While it does run, but fan will be turning very fast and be noisier than the original.
You need to know what air flow the original fan provided. When you know that, go to the web site listed below and select the needed air flow and other characteristics and find the fan you need. Digikey is a good company, I have had quite a bit of experience with them.
Good luck.
2007-02-25 16:06:52 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Yes, but you will need to compensate for the voltage difference with a resistor. The value of the resistor would be determined by the current drawn by the fan. Say you have a 12V 0.20A fan, and you want to supply it with 24V. That means the resistor must absorb 12V at 0.2A. Ohms law (E/I=R) says that you need a 60 Ohm resistor. Watts law (P=E*I) says the resisitor needs to dissipate at least 2.4 watts. You should go larger on the wattage of the resistor. I would say a 60 Ohm, 5 Watt resistor would do it.
There are 24V muffin fans available on eBay. Just type "24V fan", and search.
2007-02-25 14:15:08 · answer #2 · answered by megaris 4 · 1⤊ 0⤋
I respectfully disagree that the amp would be damaged by the lower voltage fan, but the fan will turn too fast, it will be 4x as noisy, and will probably overheat and burn out the motor, if the bearings don't overheat and seize first! Yeah, you need a 24 V fan. Make sure you get the AC or DC part right, too.
2007-02-25 13:21:36 · answer #3 · answered by Steve71 4 · 0⤊ 0⤋
No, a 12 Volt fan getting 24 volts would damage the amp, even if used for a short time. Try ebay, or the amp manufacturer's website to see if they sell parts. Also check out flea markets, goodwill, etc, if the amp is a older one, to find parts.
2007-02-25 10:32:07 · answer #4 · answered by Les 2 · 1⤊ 0⤋
24v Cooling Fan
2016-11-02 22:14:28 · answer #5 · answered by sovak 4 · 0⤊ 0⤋