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
S
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
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, "df...@darc.de" wrote:
>Maybe it’s the cooli
craft@mailman.qth.net
Subject: [Elecraft] KX3/KPA100/Powerwerx Question
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.
Or this. While vacuuming it’s recommended to block the fan so it cannot rotate.
In some cases, when the blades are driven bei the airflow too fast, the fan
works as a generator and sends some voltage into the unit - which can be
harmless but also can destroy sensitive electronics (if there is an
Dein Englisch ist viel besser als mein Deutsch!
On 6/10/22 15:44, df...@darc.de wrote:
Or this. While vacuuming it’s recommended to block the fan so it cannot rotate.
In some cases, when the blades are driven bei the airflow too fast, the fan
works as a generator and sends some voltage into t
Oh, danke. Der Satz war aber auch absolut korrekt - seems to be even on points
:)
73
Hans, DF3DD
> Am 11.06.2022 um 01:56 schrieb Alan Bloom :
>
> Dein Englisch ist viel besser als mein Deutsch!
>
>
> On 6/10/22 15:44, df...@darc.de wrote:
>> Or this. While vacuuming it’s recommended to bl
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