[Elecraft] K3: computer headset connection

[Dave Martin]

On Feb 6, 2008 8:35 PM, Greg <ab7r at cablespeed.com> wrote:
> The mic jack on the RP is a stereo jack.  You should use a stereo plug with
> audio on the tip and ground on the sleeve...nothing on the ring.
>
> 73
> Greg
> AB7R
>
Roger.  The K3 schematic shows no connection to the ring terminal on
the rear jack.  And the mic bias, if selected, is applied to the line
which connects to the tip.  Seems like a typical sound card has five
volts in the ring, and takes its input from the tip.

Dave  W5DHM