[Elecraft] Use of PC power supplies with K2

[Kenneth Moorman]

I would like to hear from anyone who has attempted to use one of the small
external PC AC adapter power supplies with a K2.  They are, of course,
switchers, so I am not very hopeful.  I have found a couple of possible
candidates, one a Meanwell P40A-4PSJ rated at 13.8 volts at 2.66 amps and
the other an APS AD-740U-1138, rated at 13.8 volts at 2.8 amps.  They seem
to have somewhat comparable specs as to regulation, ripple, and protection.
I suspect they would be pretty bad on RFI, so even though they can be had
cheaply, they may not be worth the grief.  My fallback position would likely
be the little unit from Gamma Research, HPS-1a, but that will be twice as
heavy and probably ten times more expensive....but from what I've read about
it, it is not very noisy electrically.  I would really appreciate any
thoughts, especially those with first hand experience.  This would only be
for portable operation, not "normal" use.  Thanks.

73,

Ken Moorman, NU4I