[Elecraft] Possible power supply option for the KX3

[Don Wilhelm]

Mel,

That same supply should power your KX3 quite nicely.  You might even 
remove the series diodes if the supply voltage is no greater than 15 
volts (hint - measure the no-load voltage with your DMM).

Most of those supplies are switchers, but if you have not had a problem 
with RF noise on your FT-817, the KX3 should not introduce any 
additional ones - note that noise conducted onto the DC input is quite 
another issue.  I have not tested my KX3 with other than a clean and 
stiff power supply, but my experiments with DC receivers indicate that 
they do not do well if there is conducted RF energy riding in on the DC 
input.

73,
Don W3FPR

On 6/20/2012 6:07 PM, Mel Farrer wrote:
> Well, I use a older Sony laptop supply rated at 15 VDC at 3A to run my FT817 QRP I put two silicon diodes in series on the output.  Been running for over 5 years now.  I modified a MFJ 16010-ST tuner to include a micromatch using a couple of old subminiture battery indicator meters.  Thats my QRP station until the KX3 arrives, hi.
>   
>   
> Mel, K6KBE
>
> --- On Wed, 6/20/12, Val <val at vip.bg> wrote:
>
>
> From: Val <val at vip.bg>
> Subject: Re: [Elecraft] Possible power supply option for the KX3
> To: elecraft at mailman.qth.net
> Date: Wednesday, June 20, 2012, 1:39 PM
>
>
> Phil,
>
> I modified a 300W ATX PS from my junk box 5 years ago and using it
> every day since with my K2 and K3. A lot of dxing and contests, not
> a single issue.
> The quality of the PC PS differs too much, but a good many of them
> are not worse than the other swithers.
>
> 73, Val LZ1VB
>
>>    A shot in the dark.....
>>
>>    Has anyone adapted a "standard" ATX-type computer power supply
>>    12V DC output to run a transceiver (K2, VHF, etc)?  I have
>>    one that could be used if feasible.
>>
>>    Pro/con experiences appreciated.
>>
>> --  73 de K2ASP - Phil Kane
>>      Elecraft K2/100   s/n 5402
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