[Elecraft] [K2] Adding amplifier PTT out to K2

Don Wilhelm donwilh at embarqmail.com
Fri Feb 7 16:47:32 EST 2020


Bruce,

As original as it gets is Tom's own documentation.  BTW, the board 
header goes in K2 RF Board J13 which has power for the circuit as well 
as the 8R signal.  Solder the header into J13 and mount the output javk 
on the rear panel - populate the board and plug it in.

Go to Tom's website preserved at http://www.mmccs.com/mmarc/n0ss/. 
Scroll down to Elecraft K2 - Related Files.  On that page you will find
the K2 (BASIC) External T-R Relay Driver.  Click on that link to open 
the .pdf document.  The parts list Mouser numbers may have changed, but 
otherwise the parts list is complete.

73,
Don W3FPR

On 2/7/2020 4:18 PM, K1FFX wrote:
> 
> I contacted FAR Circuits about the N0SS Amp Keying Circuit, and heard right
> back from Fred.
> He can, in fact, supply that PCB (as well as, he informed me, a PCB for the
> K2 fixed audio
> output mod).  I'll be ordering the N0SS board when I get back North next
> month.
> 
> Is there an "original" document that went along with the N0SS circuit, which
> might
> suggest where/how to mount the board, and where to pick up the K2's 8R
> signal?
> 


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