[TenTec] Noise from Fans

[K8JHR]

Horizontal vs vertical fins...

Hmmm....  that makes sense considering heat rises.  Another great 
observation based on facts hiding in plain view.  Of course he WOULD 
mention it AFTER you had completed your project !   Murphy strikes again.

Thanks.
------------------ JHR -----------------------


On 3/6/2014 6:41 PM, k6jek wrote:
> Nicely done.

seem to recall quite a difference between horizontal and
vertical fins with the same surface area.


_______________________________________________
>
> Jon
>
> On Mar 6, 2014, at 3:02 PM, K8JHR wrote:
>
>> Here is my solution - using very quiet computer fans.  See the link at the bottom of the page:    "Cooling Fan Project"
>>
>> http://k8jhr.com/project_links.html
>>
>> I sometimes use a small resistor to slow them down, but they run on 12v and usually spec out around 15-19 dB noise factor.
>>
>> I just could not spend over $40 on the TT fan, when I could make one for less than $10 - including buying a brand new fan.  Mine are CoolerMaster fans that cost me $7 I think.
>>
>> Maybe my plan will spur some other ideas.
>>
>> ------------------------- K8JHR ---------------------
>>
>>
>> On 3/6/2014 5:21 AM, Rick - DJ0IP / NJ0IP wrote:
>>
>>> At the time, most small PC towers had small case fans that ran on 12v,
>>
>> ___________________________________________________
>> _______________________________________________
>> TenTec mailing list
>> TenTec at contesting.com
>> http://lists.contesting.com/mailman/listinfo/tentec
>
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>