[Elecraft] [K3] Fan noise cure

[Bob]

Hi Doug,

              If noise is the issue you might want to search the archives. Some 
time back a fellow posted information on a replacement Noctua fan that had more 
CFM output but was quieter than the original per the specs.

               So if replacement is required then possibly the replacement could 
also be a upgrade.

73,
Bob
K2TK  ex KN2TKR (1956) & K2TKR.

On 8/10/2015 5:31 PM, Don Wilhelm wrote:
> Doug,
>
> It is not really a problem to remove the fan.
> Take the top cover off, remove the 4 screws holding the fan panel, unplug the 
> fans (noting which connector goes where), and you may want to remove the leads 
> to the circuit breaker.
>
> Except for putting a new fan on the fan panel, that is all there is to it.  
> The lead length to the connector is different for each of the fans.
>
> 73,
> Don W3FPR
>
> On 8/10/2015 4:58 PM, Doug Turnbull wrote:
>> Dear OMs and Yls,
>>
>>       One of my K3 fans makes more noise than I care for whilst running just
>> 65 Watts in CW mode.   I wonder if there is an easy fix for the existing
>> fan.  Maybe the only fix is a fan replacement?    Secondly how problematic
>> is it to remove the fans?   Does one need to rip out many components to get
>> to the fans.    I know I could start pulling the radio apart but someone
>> else may have a suggestion.   Yes I can read the assembly manual but perhaps
>> there is a shortcut.   It may not be worth the effort or perhaps I best wait
>> till the magic time when I order the new Preamplifier board to further
>> upgrade the K3.
>>