[Elecraft] PRE/ATT selection problems - K2

[Don Wilhelm]

Dave,

The two relays are K16 and K17.  Download the manual from the Elecraft 
website and you can view the schematics without having the paper copy handy.

Check the soldering carefully - a bad connection can produce the 
symptoms you describe.  Relay failures do occur, but they are rare 
unless physically damaged.  Except for ones that were burned by a 
soldering iron, I have found only 2 relay failures in all the K2s that I 
have serviced over the years.

73,
Don W3FPR

David Walker wrote:
> Hi,
>
> I have a gradually worsening problem on my K2 when I try to select 
> PREamp,  ATT, or normal.  The symptoms are the relay clicks (normally) 
> but on the PRE-ON and ATT positions I get attenuation levels on RX.  
> In Normal mode I get a very deaf K2.  Sometimes the only fix is to 
> repeatedly press the PRE button until things return to normal, or I 
> change bands and return to the band I was operating.
>
> I suspect a dud relay.  My schematics packed away somewhere.  Could 
> someone advise which one (or ones) would be the culprit.
>
> Dave
> VK2NA
> SN: 3222
>
>
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