[Elecraft] Elecraft Digest, Vol 254, Issue 7

[Bob McGraw K4TAX]

I would carefully unplug each connector.  Clean it using a Q-tip moisten with contact cleaner.  Then plug it back in. Make sure it is fully and correctly inserted.  

Never spray anything in the radio!   I would say contact grease is also a NO NO.  

73
Bob, K4TAX 

Sent from my iPhone

> On Jun 7, 2025, at 11:03 AM, elecraft-request at mailman.qth.net wrote:
> 
> Send Elecraft mailing list submissions to
>    elecraft at mailman.qth.net
> 
> To subscribe or unsubscribe via the World Wide Web, visit
>    http://mailman.qth.net/mailman/listinfo/elecraft
> or, via email, send a message with subject or body 'help' to
>    elecraft-request at mailman.qth.net
> 
> You can reach the person managing the list at
>    elecraft-owner at mailman.qth.net
> 
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of Elecraft digest..."
> 
> 
> Today's Topics:
> 
>   1. TMP connectors (Jim Rhodes)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Fri, 6 Jun 2025 20:25:45 -0600
> From: Jim Rhodes <jimk0xu at gmail.com>
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] TMP connectors
> Message-ID:
>    <CALhxr4bALJVgxQDoNehm5n6daOXy8cauraheNzty6T2yyiBMeA at mail.gmail.com>
> Content-Type: text/plain; charset="UTF-8"
> 
> My K3 does not get a lot of use anymore because its spot on the desk has
> been taken by the K4D.  Now the K4 has been at the mothership and the K3
> was perking along just fine and then went silent suddenly.  No receive, no
> transmit.  I opened it up and poked around a bit the next day with the top
> cover off and all of a sudden the receive started crackling and transmit
> was fine.  Buttoned it back up and it worked fine during off and on use for
> a few days, then it went quiet again after an all day stretch.  So I popped
> the top and twisted all of the TMP connectors that I could reach, powered
> it up and it has been working fine again.
> My question to the group is: Has anyone ever gone to the trouble of
> treating all of those pesky little connectors with some kind of dielectric
> grease to keep them from this kind of behavior?  By the time you add the
> second receiver and the 2 meter board there gets to be a lot of the little
> buggers in there and most of them are hard to get at.  Seems like it might
> be a good project to try now that the K4 is on its way home again.
> 
> Jim K0XU
> jim at rhodesend.net
> 
> 
> ------------------------------
> 
> _______________________________________________
> Elecraft mailing list
> Post to: Elecraft at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/elecraft
> You must be a subscriber to post.
> Elecraft web page: http://www.elecraft.com
> 
> End of Elecraft Digest, Vol 254, Issue 7
> ****************************************