Re: K3 KPA3 Fan Upgrade Question

Posted by M0XDF on May 13, 2009; 2:16pm
URL: http://elecraft.85.s1.nabble.com/K3-KPA3-Fan-Upgrade-Question-tp2883346p2884092.html

I don't understand why you are looking to upgrade over the std spec -  
surely elecraft have considered all the possibilities of ambient temp  
to run in - unless of course you are operation in an oven?
:-)

--
Study without desire spoils the memory, and it retains nothing that it  
takes in.  -- Leonardo da Vinci

On 13 May 2009, at 13:11, Brian Binkley wrote:

> Hello,
>
> I am currently in the process of upgrading the fans for the KPA3 100  
> Watt
> Amplifier module because the heatsink temperature gets too high for my
> liking. I am upgrading both fans to a fan with higher CFM output.  
> Last night
> I hooked both fans up to the KPAIO module to test and see if they  
> will work.
> When I am on fan power level one, the fans try to but are unable to  
> start
> up. I have to bump them to start them spinning. Power level two has no
> problem spinning them up. When I went to power level four and then  
> brought
> the power level to one, the fans did not have any problem continuing
> running. The fan specs can be found here
> http://www.sundialmicro.com/ipcqueen_dc_fan_606010_ball_bearing_3pin_2033_1199.html 
> .
> Is there any components that I can add in line to provide the  
> necessary
> power to start the fans up at power level one?

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