[Elecraft] K3 12 VDC OUT (Switched)

[Joe Subich, W4TV]

On 7/3/2016 11:09 AM, GW4DVB wrote:
 > Just a quick question on the 3 12 VDC OUT (Switched)
 >
 > Is it really switched? - I'm only asking as it seems to be permanently
 > sitting at 13.8V

Yes, it is switched with the POWER switch on the K3.

If you look at K3 RF Board (3 of 4) schematic, the feed to the +12V Out
jack comes from the drain of Q2.  Q2 is the 12V switch to the K3 and
is controlled by the /PWR_ON line (Power switch and control processor).

73,

    ... Joe, W4TV

On 7/3/2016 11:09 AM, GW4DVB wrote:
> Just a quick question on the 3 12 VDC OUT (Switched)
>
> Is it really switched? - I'm only asking as it seems to be permanently
> sitting at 13.8V
>
> I am trying to switch off an accessory on keying the K3 ... is there another
> way ?
>
> Thanks
>