[ICOM] PS-125

[Alex]

Hi Jose,

I have the same problem with my PS-125. It is the HF transformer inside the
unit. Actually it's the ferrite core in the transformer making the noise.
The only way to cure this is by putting a new transformer in (let Icom
replace it if it's still under warranty) or carefully use fiberglass
insulation to sound proof the power supply. Of course make sure for adequate
ventilation. When you open the power supply you'll see a lot of gooey stuff
being used that is supposed to stop the high frequency vibrations, but it is
very ineffective in some units.

If you find a solution that works for you, please share it with us.

73,
--Alex KR1ST
http://www.kr1st.com


> -----Original Message-----
> From: icom-bounces at mailman.qth.net [mailto:icom-
> bounces at mailman.qth.net] On Behalf Of [ José=LU1ARV ]
> Sent: Tuesday, June 19, 2007 2:52 PM
> To: icom at mailman.qth.net
> Subject: [ICOM] PS-125
> 
> Hi hi!
> Somebody has met with some small electric buzzing of that PS. It is
> really listened. Connected 220v.
> The same one works perfectly with the rig, and it is of the year 2006.
> That you can measure or to control in her ? That you can revise.
> I possess another similar one and doesn't have any inconvenience.
> Thanks
> José
> 73
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