[Elecraft] Switching supplies and the K3

[Fern Rivard]

The early Samlex switching power supplies were on the noisy side but they have corrected that problem years ago. I personally use the Samlex SEC 1235M switching supply with my K3 and certainly do not get any noise from it.
    73 from Fern  VE7GZ with K3 #412



----- Original Message ----- 
From: "Phil & Debbie Salas" <dpsalas at tx.rr.com>
To: <elecraft at mailman.qth.net>
Sent: Tuesday, July 08, 2008 7:56 AM
Subject: [Elecraft] Switching supplies and the K3


"Same here. I have two of these supplies, and have yet to hear a
peep of RF noise from them.  73 Stewart G3RXQ

"I am having very good performance from the SEC 1223 which is the
same supply I use with the K2/100.  If it does generate any noise I have yet
to hear it.  Bruce-W8FU"

I'm using a SEC-1235.  It is also RF quiet and works well.  I modified mine 
by adding Powerpole connectors to the back, and changed the fan circuitry so 
that the fan runs at slow speed all the time (still full speed if/when 
necessary).  Info is on my website in the "Equipment Modification" section 
at www.ad5x.com.

Phil - AD5X 

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