[Elecraft] K2 CW - relay clicks

[David Moorman]

The clicking relay turned out to be in an amplifier keying circuit a 
previous owner had installed.

Problem solved!

Dave K9SW


On 7/25/2021 5:51 PM, K9SW at comcast.net wrote:
> Thanks, Don.  It’s a K2/10, so I’ll do the relay touch-test.
>
> Dave   K9SW
>
>
>
>> On Jul 24, 2021, at 8:40 PM, Don Wilhelm <don at w3fpr.com> wrote:
>>
>> Dave,
>>
>> I am at a loss to tell you what is going on.  The T/R switching in the K2 is all electronic, no relays involved.
>> If a K2/100, break it down to just the base K2 and see if it is in the base K2 or in the KPA100.
>> If you have the K2/10, remove the top cover which contains the KAT2.
>>
>> If it occurs in just the base K2, hold your finger on the relays one by one and see if you can detect which one is switching as you key the K2.
>>
>> 73,
>> Don W3FPR
>>
>> On 7/24/2021 5:22 PM, K9SW wrote:
>>> Recently bought a K2 and all was working well (silent QSK) until I moved from one spot on the bench to another.  It was powered up and one of the leads fell off the power supply connector, so this was a live power interruption.  After this, there are relay clicks when sending CW.  I did a reset, but this did not change the relay clicks.  Built the probe and did the CAL FIL routine and got it back on the air successfully.
>>>
>>> S/N 100, with ATU and SSB board.
>>>
>>> It would be nice to get back to silent QSK and preserve relay life.  Any suggestions appreciated!
>>>
>>>
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