[Elecraft] OT: wall wart for RX-only PS?

[John R. Lonigro]

Doug:
Check the voltage coming out of that wall-wart.  Very few of them are 
actually regulated.  It might put out approximately 12V at 500 ma, but 
it might be closer to 20V when you aren't drawing much current.  As 
previously noted, hum might also be a problem.  You could still use it, 
but you need to put a regulator and a couple of capacitors on the 
output, to eliminate damage to the rig as well as hum.

73's,

John AA0VE

DOUGLAS ZWIEBEL wrote:
> I want to set this up away from the shack, but still in the house, for
> RX only (when I'm not in the shack).  I have a RS wall wart rated at
> 14 watts (12v, 500ma).  Is there any reason why I should NOT use this
> as the PS?
>
> Thanks,
> de Doug KR2Q
>
>