How to replace the fan in your mobile Ham Radio, CB, test gear, or many other things

[@seanobrien7169]

I use Noctua in my PC builds. Not into all that RGB disco stuff, I kind of dig the beige and brown colors everyone always complains about. Great fans, never had an issue with one.

[@jamesrobinson9176]

I'm glad to see more activity on this channel 😊

[@bruceferrero8178]

Great information! Recently had a neighbor with a bass guitar amp. His fan was getting noisy, he replaced it with a similar unit, but his amp would overheat. I looked into it, the fan ran at 12 volts once it was turned on, then 24v when a certain temperature was reached. The fan he had installed was 24v and at 12v it wouldn't run and the amp would overheat.. Had to search data sheets for a fan that would work over the voltage range and it has been working well ever since. Thank you.

[@Technical_Audio]

I recently set out to reduce the fan noise on some HP test equipment by installing a Noctua fan. It turns out that the HP fan was running off of full line AC voltage, and Noctua only offers low voltage (5, 12, and 24 V) DC fans.

[@betterl8thannvr]

It's pretty rare that I have found a fan circuit that isn't capable of handling significantly more current than the original fan, or a DC fan in the same size and voltage that is significantly different from any other fan of the same size and voltage. I always start with size, voltage, and CFM and work back from there. Especially on radios. The fan is protecting your finals, and if you reduce the fan output, you reduce the duty cycle the radio can handle. Not necessarily linearly either.

[@Blueglow]

Exactly why I said stay within 10%.

[@johnsenchak1428]

I'm your biggest "fan"

[@truthreigns7]

The fan looks like a pc fan.