k3 external speaker mono v stereo plug

[Doug Turnbull]

Ken,
     Thank you for your warning but I am now wondering if it applies to
later SN K3s.   Mine is number 2574 and sure enough I have been using a
mono-plug but in the Config Menu under SPKRS 1 has been selected.   The
manual indicates a preference for stereo plugs but clearly states, "If you
only have a mono plug, set CONFIG:SPKRS to 1 to disable right-channel
audio."   A comment from Elecrafter might be in order to fully clear this
matter up.   In the meantime my external speaker is out until a stereo plug
is wired.   Thank you for the warning.

                         73 Doug

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[AC7AC]

CONTENTS DELETED

The author has deleted this message.

[Ken Kopp-3]

Doug, others ...

If you -do- have a situation where the audio IC is looking
into a shorted load and still working ... remember, mine
and another ran for months before the audio IC failed.

With your radio turned on, remove the top cover and look
inside at the extreme left top corner of the board closest
to the shield.  Note if there is discoloration of the edge of
the board above the large IC and / or stick your finger in
and touch the IC.  Sniff the area for the tell-tale smell of
hot glass epoxy circuit board.  If it is like mine you'll test
your reaction time, as the IC will most likely be far too hot
to touch.

73! Ken Kopp - K0PP
      [hidden email]
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[hf4me]

Does somebody have an approximate serial number when the erferenced "Rev B"
KIO3 bd began to be used?

Thanks es 73, de Jim KG0KP

----- Original Message -----
From: "Ron D'Eau Claire" <[hidden email]>
To: "'Doug Turnbull'" <[hidden email]>; <[hidden email]>
Sent: Saturday, April 04, 2009 3:31 PM
Subject: Re: [Elecraft] k3 external speaker mono v stereo plug

> The mod is NOT needed if you have a Rev B KIO3 board in your K3.
>
> It's easy to see the rev letter on your board by simply opening the top
> cover. Details about how to do that are available in the mod document
> here:
>
> http://www.elecraft.com/K3/mods/AF_Output_Mod_Rev_C.pdf
>
> Ron AC7AC
>
> -----Original Message-----
>
> Ken,
>     Thank you for your warning but I am now wondering if it applies to
> later SN K3s.   Mine is number 2574 and sure enough I have been using a
> mono-plug but in the Config Menu under SPKRS 1 has been selected.   The
> manual indicates a preference for stereo plugs but clearly states, "If you
> only have a mono plug, set CONFIG:SPKRS to 1 to disable right-channel
> audio."   A comment from Elecrafter might be in order to fully clear this
> matter up.   In the meantime my external speaker is out until a stereo
> plug
> is wired.   Thank you for the warning.
>
>                         73 Doug
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

[Don Wilhelm-4]

Jim,

It is better to use the approximate ship date posted on the Elecraft
website listing of K3 Mods and Enhancements.
There can be a serial number differences between the factory ship K3s
and the kit versions  - the factory built K3 are at the factory longer
after the serial number has been assigned, so the ship date is a better
reference.

OTOH, it is a simple matter to remove the top cover and look at the board.

73,
Don W3FPR

Jim Miller KG0KP wrote:
> Does somebody have an approximate serial number when the erferenced "Rev B"
> KIO3 bd began to be used?
>
> Thanks es 73, de Jim KG0KP
>  
>
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html