[Elecraft] Which of these would make the best power supply for the K3(S)?

[Bob McGraw - K4TAX]

My suggestion and test is to measure the voltage between the Astron 
power supply  GRD terminal and the GRD terminal on the radio.  Any value 
over 0.5 volts, when in CW mode, key down at 100 watts is a situation 
that should be investigated and improved.

73
Bob, K4TAX
K3S s/n 10163
  

On 10/29/2015 10:32 AM, gerald finn wrote:
> For powering my Elecraft K3S and P3, I am using the Astron RS-35 power supply feeding a West Mountain DC-to-Go PWR gate PG40S and Rigrunner 4007U with a 79 Amp hour battery.
>
> Living on an island, we have many spikes and losses of power during the year.  I figure that if I'm spending a sizable amount for my rig, I should have a good power supply.
>