[time-nuts] 53132 replacement fan

John Ackermann N8UR jra at febo.com
Mon Nov 21 13:37:48 EST 2016


Thanks, all for the tips.  Glad to know it's a standard size so there's 
plenty of choice.

John
----

On 11/21/2016 12:57 PM, jimlux wrote:
> On 11/21/16 6:39 AM, Charles Steinmetz wrote:
>> Tom wrote:
>>
>>> EFB0412MD
>>> Airflow 7.17 CFM
>>> 6300 RPM
>>> Noise 24 dBA
>>>
>>> FBK04F12U
>>> Same exact form factor.
>>> Air Flow 9.2 CFM
>>> 9500 RPM
>>> Noise 42 dB(A)
>>
>> Note the 18dB greater noise (that's a HUGE difference).  Even with bad
>> bearings in the original fan, it is probably considerably quieter (by
>> 10dB or more) than the proposed replacement.  On the other hand, the
>> replacement moves 28% more air, which may be a good thing.
>>
>
> That's a 40mm fan, which is a standard size, I'll bet you can find a
> slower turning/quieter fan.
>
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