[Elecraft] Mechanical bug contact bounce

[Bryce A. Carr]

Every several seconds you experience a scrambled dot and it sounds like 
dirty or misadjusted contacts.
                                                      Aloha,
                                                          Bryce
----- Original Message ----- 
From: "WA6L" <wa6l at arrl.net>
To: <elecraft at mailman.qth.net>
Sent: Monday, September 15, 2008 9:30 AM
Subject: Re: [Elecraft] Mechanical bug contact bounce


>
>
> Interesting stuff, Briyce!  I have been using my Blue Racer on the K3 and
> have heard the occasional erratic dot.  I thought it might be dirty 
> contacts
> (it's an old bug).
>
> What were you hearing that made you come up with the fix?  The odd dot 
> that
> I hear is not repeatable and not regular.
>
> Aloha and 73,
>
> John, WA6L  (ex AH6CL)
>
>
>
> Bryce A. Carr-2 wrote:
>>
>> To get rid of the "dot" contact bounce, erratic sounding dots, that I
>> experienced I put a .22 microfarad across the keyline on K3 side of
>> keyline and a 10K resistor in series with the key line on the bug side of
>> the keyline. On a 2nd receiver my two bugs now sound like a electronic
>> keyer.
>> If you use a bug on the K2 you can try a 3300 ohm.
>>
>> <snip>
>>
>>                                                 Aloha,
>>                                                      Bryce, kh6at
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>
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