[Elecraft] Samelex Power Supplies with a K3

Steve Ellington n4lq at carolina.rr.com
Sun May 23 08:18:36 EDT 2010


I read the Eham reviews about how quiet the fan is and that it seldom even 
runs so I bought one. I used it to power the K3. The fan came on after about 
3 minutes of receive mode operation and it was louder than anything else in 
the shack. I hate fans, except when I'm sleeping! The fan attempts to 
dischage out the bottom of the supply (strange). Also, the voltmeter stayed 
pegged at 15v however the voltage output was really 13.8.
I had no RF hash although one time I held my AM transistor portable up close 
to it and it really wiped it out but so will most switchers.
I unhooked the fan and ran it that way for a few weeks until one day the 
over temp. sensor shut it down.
I also have the little MFJ switcher and it performs just as well and cost 
less but it too has a disgusting little fan.
Finally, I went back to my Aston 35m which has no fan and helps hold down 
the desk. Ahhh....No noise, No hash....Just nice clean DC.
73
Steve
N4LQ
----- Original Message ----- 
From: "N1JM" <johnn1jm at gmail.com>
To: <elecraft at mailman.qth.net>
Sent: Sunday, May 23, 2010 12:17 AM
Subject: [Elecraft] Samelex Power Supplies with a K3


>
> Anyone using a SEC1235 with there K3? Much RF hash?
>
> John N1JM
> -- 
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> Sent from the Elecraft mailing list archive at Nabble.com.
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