[Elecraft] k3 external speaker mono v stereo plug

[Jim Miller KG0KP]

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" <ron at cobi.biz>
To: "'Doug Turnbull'" <turnbull at net1.ie>; <Elecraft at mailman.qth.net>
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
>
>
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