[Elecraft] Reliable DC Power Supply for K3/P3

[Jim Brown]

On 11/19/2013 6:35 AM, Robert Nobis wrote:
> I m about ready to place an order for a K3 and P3, and wonder if there are
> recommendations on a reliable DC power supply for the Elecraft 100-W
> transceiver.

For the last ten years, I've been powering all the 12V gear from a deep 
cycle battery (Costco's largest)  that I float charge from a regulated 
power supply.  The result is a rather robust UPS for the key elements of 
the ham station. While the Astron supplies have a well-deserved 
reputation for reliability (and I've used several of them), my present 
choice is a 20A Power Werx switching supply that I bought to take on a 
DX trip several years ago. It's RF quiet, the regulation voltage is 
13.8V as shipped, and it can be varied (internal pot) to adjust to the 
needs of the battery you're using.

Such a system is also easily adapted to solar by the addition of solar 
cells and a charge regulator, and I did that recently.

73, Jim K9YC