[Elecraft] [K2] W3FPR Fixed audio out - installation options or ideas?

[Don Wilhelm]

  John,

In your case, I would suggest you put a connector on RF Board J5 and a 
3.5mm stereo jack on the rear panel.  Pins 1 and 3 of J5 are the 
balanced audio signals and pin 2 is ground.  The balanced audio signals 
go to the 2 inputs of the LM386 (through capacitors).

You will lose 3 dB of gain if you only connect one side of the balanced 
audio (through an RCA jack).

73,
Don W3FPR

On 11/21/2010 1:29 AM, VK7JB wrote:
> Hi all,
>
> Just curious to know if it's possible to install the W3FPR Fixed Audio out
> board external to the K2?
> I've made up Don's circuit on a small piece of perf board, but for various
> reasons related to the way I've built it, the board's not going to fit
> comfortably between the front panel and control boards on the K2.
>
> Is it possible to somehow take the audio to an RCA/other  jack on the back
> of the K2 and then mount the circuit board externally in a small box, to
> which I'd then connect my Signalink unit audio input?  Anyone done this?
> Any other ideas for implementing the fixed audio out?
>