[Elecraft] K2 Digital Signals Mod

[Don Wilhelm]

Mike,

Pauli unfortunately is a silent key, but you want to consider an alternative, take a look at my webpage (http://w3fpr.qrpradio.com article on A Fixed Audio Output for the K2.  If you take the audio out to a spare pin on the mic connector (pin 5 for the Elecraft configuration - remove the mic header jumper for the pin used), then all signals needed for an external digital modes box are present at the mic jack - audio out, mic AF in, and PTT.
I might add that Pauli himself surprised me by ordering one of these boards claiming that it was an easier and more simple solution than his interface implementation.

I recently mounted one of the Fixed Audio boards in a K2/100 - I laid the capacitors and the resistor down flat on the board and attached the wires to the board with no connectors, and the audio out plugs onto the mic configuration header. It fits nicely in the space between the control board and the front panel - and there is even a hole in the control board near the left mounting screw that can be used to attach the board.  I will eventually update my webpage with this additional info, but I'm too busy right at the moment.

I do have boards available at $3 per board plus $0.50 for 1st class mailing US domestically - $2 air mailed internationally), but no more kits - if you are interested in a board and documentation, email me direct (without '[Elecraft]' in the subject line), and I will supply my address (or look on QRZ.com).

73,
Don W3FPR 

> -----Original Message-----
> 
> I'm about to install my KSB2 and was looking at the modification 
> listed on the website that brings out the microphone jumpers and 
> signals necessary for digital modes via a ribbon cable and small 
> PC board. I've monitored this list for a while and have not seen 
> much posted regarding the mod. 
> 
> Have many done this?
> 
> Is the PCB available somewhere? (I was considering "deadbug 
> style" construction)
> 
> Thanks & 73 de Mike, N0SO
> K2 #4757
>