[Elecraft] K3 12VDC OUT increased current mod available soon

Joe Subich, W4TV lists at subich.com
Thu Mar 15 14:53:48 EDT 2012


Instead of simply raising the current limit, you should be addressing
the voltage issues as well.  With 1.7V (SB530 and 1N4007) of diode
drop plus I^2*R losses in two chokes and the switch, the "+12V" is
already low (11.8V) with a 13.8V supply.  Run the K3 on battery or
figure in a typical 0.8V-1.2V sag in the input supply in transmit and
the "+12V" output is less than 10.5V.

73,

    ... Joe, W4TV


On 3/15/2012 12:18 PM, Paul Saffren N6HZ wrote:
> Many of you have asked if there is a way to modify your K3 so that it can
> provide enough current to supply a P3 with the SVGA board.  We are currently
> working on a mod kit that will do just that.  We'll let you know as soon as
> we have something available.
>
>
> 73,
>
> Paul (n6hz)
>
>
> --
> View this message in context: http://elecraft.365791.n2.nabble.com/K3-12VDC-OUT-increased-current-mod-available-soon-tp7376146p7376146.html
> Sent from the Elecraft mailing list archive at Nabble.com.
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