[Elecraft] [Bulk] Re: K2 Straight key auto detect

Bob K2TK at att.net
Fri Sep 19 13:37:17 EDT 2014


I have an old Brown Brothers base that has both the paddle and straight key on 
it.  On the underside I put some plain old 1N40XX diodes and can use either on 
the K2 with no changes and a single cord and plug.

HINT, HINT....  I sure wish this was an option on the K3 too.   I often wondered 
why such a great feature went away on the K3.

73,
Bob
K2TK   ex KN2TKR (1956) & K2TKR


On 9/19/2014 9:43 AM, Peter Eijlander (PA0PJE) wrote:
> I did something similar. I soldered a 
> two-Schottky-diodes-in-one-package-with-common-cathode device, salvaged from a 
> switching PSU, on a 6.3 mm jack, glued it to the base plate of my 
> sqeeze-paddle and I just have to plug in my straight key and can instantly use 
> both.
>
> Op 2014-09-19 09:41 schreef Matt VK2RQ:
>> For my K2, I made a short adapter cable, 3.5mm female to 3.5mm stereo male, 
>> and I soldered a couple of diodes inside the one of the 3.5mm connectors to 
>> bring both tip and sleeve of the male connector to ground when the tip of the 
>> female connector is grounded by a straight key. This goes into one of the 
>> female sockets on a 2x3.5mm female stereo to 1x3.5mm male stereo Y-adapter 
>> cable that is designed so one iPod can be shared with two sets of ear plugs. 
>> My paddle goes into the other female socket on the Y-cable, and the Y-cable 
>> goes into my K2.
>>
>> I can then easily move between paddle and straight key, and the K2 will auto 
>> detect. In addition, the Y-cable means I don't have to fumble around at the 
>> back of the radio if I want to swap over some different keying devices.
>>
>> I might have mentioned this before, but the K2 is a great radio:-)
> It is!
> Mine is called 3244... :-)
>



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