[Elecraft] Switching supplies and the K3

[Stewart Baker]

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

73
Stewart G3RXQ
On Mon, 7 Jul 2008 21:50:08 -0400, Bruce McLaughlin wrote:
> 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
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Thomas 
Kuehl
> Sent: Monday, July 07, 2008 5:24 PM
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] Switching supplies and the K3
>
> Hi,
>
> I am back on the Elecraft list after being gone for quite a 
while. I have a
> K3/100 coming in the next month or 2, and now I am thinking 
about how it is
> best to power it. The K3 has a nice small footprint and that 
will be much
> welcomed in my small operating area. And, I don't want to dwarf 
the
> available space with a big linear power supply. Therefore, I am 
considering
> a switching power supply with its small size as well. Switching 
supplies
> have come a long way relative to the RF hash generation issue 
and I am
> considering going that route. I sure don't want to degrade the 
K3'3
> outstanding performance with a noisy supply, so I am still 
cautious.
>
> The eHam reviews for switching supplies provides a lot of 
different opinions
> for the various products. One in particular, the Jetstream 
JTPS28, seems to
> get high marks from its users. Is anyone on the list using this 
particular
> supply to power the K3? If so, what are your impressions of its 
performance?
> Or should I skip the switching power supply idea altogether?
>
> Thanks, Thomas - AC7A
>
>
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