[Elecraft] KX3/KPA100/Powerwerx Question

[Kevin McQuiggin]

I suggest taking the lid off of the power supply and inspecting the fan for dust.  It can accumulate and affect the free rotation of the fan, generating noise.  A vacuuming might be in order.

73,

Kevin VE7ZD/KN7Q


On June 10, 2022 1:18:51 a.m. PDT, "DF3DD at darc.de" <df3dd at darc.de> wrote:
>Maybe it’s the cooling fan of the power supply. When more power is needed the supply gets warmer and the fan spins faster - so you can hear it then. If it’s too annoying, there are more quiet fans with which you could replace the original fan.
>
>73
>Hans, DF3DD
>
>
>
>
>> Am 10.06.2022 um 07:37 schrieb Jim Ruff via Elecraft <elecraft at mailman.qth.net>:
>> 
>> I have a KX3/KPA100/Powerwerx setup.  When I run the rig with the amp on, my Powerwerx 30 amp power supply makes a whirling sound.  If I run the rig without the amp, the power supply makes no noise.  When I run may K3 it makes no noise.  Is there a problem causing the noise?Thanks,Jim W7JHR
>> 
>> 
>> 
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