[Elecraft] unusual problem

[Lou Kolb]

Sam,

Not sure which accessory is the KXV3a.  I do have the internal tuner and a 
G5RV  and a tribander hooked to the A and B antenna jacks.  I have no amp 
and use the G5RV most of the time.  I should also mention that everytime 
this has happened, it's been right after turning the rig on after it has 
been sitting overnight in a chilly shack.  It'll arc for a few seconds, only 
while transmitting, and then settle down.  So far, I haven't noticed any 
other anomales in the operation of the rig.  Lou WA3MIX
----- Original Message ----- 
From: "Sam Morgan" <k5oai.sam at gmail.com>
To: "Lou Kolb" <loukolb at gmail.com>
Sent: Saturday, December 11, 2010 8:01 AM
Subject: Re: [Elecraft] unusual problem


> Do you have the KXV3A in your K3?
> I had the KXV3A in mine and added an antenna to the RX ANT IN
> Then I transmitted on another antenna.
> Everything was fine when running 100w.
> Then I turned on my Ameritron AL-811 amp.
> When I transmitted I heard a sizzling sound,
> and smelled something burning.
>
> It turns out my RX antenna was to close to my TX antenna.
> The result was the GAP 1 melted the solder holding it.
> It then dropped on the top of the relays on the KXVA3 board.
> Since the GAP 1 is ceramic,
> the heat from it melted the plastic case on the relays,
> causing the burnt electronics smell.
>
> The rig continued to work, but the RX antenna no longer worked.
> Perhaps this is your problem?
>
> GB & 73
> K5OAI
> Sam Morgan
>
> On 12/11/2010 6:36 AM, Lou Kolb wrote:
>> Recently, I started noticing a strange sound from my K3-4290.  When 
>> keying
>> the rig on CW I'll hear a crackling or almost a gurgling sound coming 
>> from
>> the radio itself.  It's only happened 2 or at most 3 times but this 
>> morning
>> I smelled something for the first time.  It started happening right after 
>> I
>> upgraded the firmware although I doubt there's a connection.  I'm 
>> guessing a
>> coil could be arcing, although as a person who is blind, I'm afraid I 
>> can't
>> offer any visual data.  Any thoughts?  Lou WA3MIX
>>