[Elecraft] K2 Signalink USB

[Dennis Moore]

On 1/20/2014 10:09 AM, Thomas Taylor wrote:
> Has anyone used this device with a K-2?  I haven't finished assembling the K-2
> but will want to use the Signalink-USB with it when completed.  Are there any
> special gotchas?
I use a Signalink USB with my K2. USB between PC and Signalink, 
SL-USB-8R cable between Signalink and K2 front panel Mic connector. I 
built a fixed audio output board and wired it to a spare pin on the Mic 
header so I have receive audio going to the Signalink, reduces cable 
clutter. Pretty simple to build on perfboard.
Use the Signalink wiring diagram here (under Elecraft heading, 8-pin 
Round Mic Connector), I connected the SPKR to pin 5:
http://www.tigertronics.com/sl_wirebm.htm

Here's the circuit for the fixed audio output, fits nicely behind front 
panel.
http://www2.opparc.org/mirrors/n0ss/www.n0ss.net/w3fpr_fixed_af_output_for_the_k2_v2r1.pdf

Contact me for updated Mouser part numbers, including the perfboard I 
used, and I'll also send pictures of the component layout that worked 
for me.

73, Dennis NJ6G