[Elecraft] Switching Supplies

[Stewart Baker]

I believe that all new SEC1223's have the mods fitted.

73
Stewart G3RXQ
On Tue, 08 Jul 2008 14:40:27 +0200, Jan Erik Holm wrote:
> Mike Penkas wrote:
>> I  have 2 SEC1223's and no hash. I also have an Astron RS35 and 
RS50
>> linear supplies.  Sometimes the magnetic hum from them drives 
me crazy.
>> The little cork pads Astron puts in them to alleviate this
>> does not help much. I keep them under the closed console on the 
floor.
>> Mike  WA8EBM
>>
> Sorry to disagree but the SEC1223 is far from quiet. However it 
can
> be made much better by modifications. The DC side needs much 
better
> filtering, also some work can be done on the AC side.
>
> 73 Jim SM2EKM
>
>
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