Problem Solved:
As you all have suggested it was the Switching Power Supply. It now has
a Home in the Trash. Hooked my 12 Volts to the Main Astron Power supply
and Noise is Gone.
Thanks All
Bruce N9BX 73
On 8/25/2012 1:33 PM, Bruce Osterberg wrote:
>
> Hello: I have Built a W6PO amplifier in a 30 Inch rack cabinet, along
> with it's power supply,(pictures available upon request.) But I thought
> I would add some internal fans on the inside to help cool the
> transformer and exhaust a bit more air. Well that turned out OK except
> for the Noise, (electrical that the Fans Produce.)
>
> With out the Fans on the noise level on the K3 is right at S1 all the
> time. Once the Fans are on it goes up to S5 and Stays there. Mind you
> these are cheap Ham fest fans, but I don't know if adding anything to
> them would cut down on the Electrical Noise Generated. But then as I
> think of it I may have a Problem with the Switching Power supply from
> China that I am using to provide power to the Fans. That's easier to
> check. But if it's the Fans, is there a solution to this delima?
>
> 73 Bruce N9BX
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