[Elecraft] Power Supply

[Ron D'Eau Claire]

I presently have an Astron that does nicely. Like Phil, I don't care if it
doesn't match the K3 because it's on the floor under the operating desk.
It's linear and I have learned (the hard way at times) that other
electronics can be adversely affected by the big magnetic field around the
supply power transformer so I'd not put it next to the rig even I had the
space. 

However, I would like to have an uninterruptable supply that will run the K3
at full power for a number of hours or at reduced power for even longer for
emergency communications.  

I have been looking over options for sealed storage batteries that I can put
in the shack coupled with a charger. Such systems can provide truly big
currents when needed without voltage droop or being overloaded and do so
continuously as long as there is mains power.

While it's straightforward to locate components and assemble my own, I
haven't stumbled upon any off-the-shelf packages for sale above the 8 or 10
Ah level. 

A nice option for such a system would be a solar charger for those with
plentiful sunshine to either replace or back up the mains power charger.  

I steadfastly resist any sort of "switcher" power supply - just too many
variables trying to keep all that RF hash buttoned up inside their cabinets
for me :-) 

Ron AC7AC