[Elecraft] Wallwart for K1

[John Ragle]

The most recent issue of QEX contains an article that outlines some 
simple filtering that can be applied to a small switcher to remove the 
birdies inherent in the class. That said, I don't remember ever seeing a 
"linear" power supply in this low-current application, but there are no 
doubt some...try e.g. Astron -- I have a couple of their larger linear 
supplies that are very good. It seems unlikely that you can find a 
wallwart linear, but there are good wallwart-type supplies with 
filtering...normally used to provide power for higher-end laptop computers.

John Ragle -- W1ZI

=====

On 11/13/2011 11:58 AM, David & Linda Kerl wrote:
> Hello all,
>
> This is my first posting to the reflector, after purchasing a used K1-4.
> First let me say how impressed I am with the receiver. Simply amazing!
> I am now in the process of learning all abt it because in January, I have the
> oppertunity to operate portable KH6.
>
> My question is, can anyone recommend a wallwart to use with the K. One that is
> free of birdies. I would prefer a linear supply, but if there is a switcher out
> there that is lnown to be clean, Im willing to use one.
> Many thanks and hope to work many Q's as N9HF/KH6 as I can.
>
> Dave
> N9HF
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