[Elecraft] K3 Power Supply

[Dave Martin]

I've run my entire station on batteries, either a marine battery or
gel cells in parallel, for years.  I found a noise free switching
power supply good for around four amps (and current limited) and added
a voltage adjustment to it so I could set the maximum voltage to the
battery.  Its four amps was enough to power my accessories and the HF
when on receive, and the charger would catch up between transmissions,
no more active than I was.  It's nice to simply walk in and turn on a
radio without having to turn on a power supply.

Dave  W5DHM

On Jan 15, 2008 6:30 PM, Thom LaCosta <lacosta at bcpl.net> wrote:
> Looking for suggestions for a power supply for the K3/100
>
> The only thing I have handy(well, if I can get them upstairs) are
> some sealed lead acid batteries from motorized carts.
>
> I have a few that are 34ah and at least one that is 55ah and one of
> the chargers that autosenses battery charge level.
>
> Seems to me this should do the job, but I've never run a 100 watt rig
> on batteries, so I really don;t know.
>
> thanks in advance for suggestions.
>
> 73,
> Thom k3hrn