[Elecraft] Wallwart for K1

[David & Linda Kerl]

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