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Stereo phone plug on back of K3

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Phil Hystad-3

Stereo phone plug on back of K3

Back around the time I got my K3 (serial number #3799) there were several other K3 owners who had problems (like shorted audio circuit or something like that) when they put a mono 3.5 mm plug into the stereo rear panel phones outlet.

I remember the warning: use stereo only for rear panel phones.

Was this ever changed so that you can now (accidentally maybe) plug a mono into the stereo and everything would be fine (accept for losing the stereo channels in your ears).

I have not done this but the question was raised when I was chatting with a new K3 owner.

73, phil, K7PEH

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Iain MacDonnell - N6ML-2

Re: Stereo phone plug on back of K3

Phil,

See http://www.elecraft.com/K3/mods/AF_Output_Mod_Rev_C.pdf

73,

~iain / N6ML

On Sun, Feb 26, 2012 at 8:42 AM, Phil Hystad <[hidden email]> wrote:

> Back around the time I got my K3 (serial number #3799) there were several other K3 owners who had problems (like shorted audio circuit or something like that) when they put a mono 3.5 mm plug into the stereo rear panel phones outlet.
>
> I remember the warning: use stereo only for rear panel phones.
>
> Was this ever changed so that you can now (accidentally maybe) plug a mono into the stereo and everything would be fine (accept for losing the stereo channels in your ears).
>
> I have not done this but the question was raised when I was chatting with a new K3 owner.
>
> 73, phil, K7PEH
>
> ______________________________________________________________
> 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

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Nr4c

Re: Stereo phone plug on back of K3

In reply to this post by Phil Hystad-3

The headphone jack is not the issue, it was the SPEAKER jack.
Different amplifiers. I haven't seen a mono plug on a headphones set in
a long time.

....bill nr4c

On Sun, 26 Feb 2012 08:42:32 -0800, Phil Hystad wrote:

> Back around the time I got my K3 (serial number #3799) there were
> several other K3 owners who had problems (like shorted audio circuit
> or something like that) when they put a mono 3.5 mm plug into the
> stereo rear panel phones outlet.
>
> I remember the warning: use stereo only for rear panel phones.
>
> Was this ever changed so that you can now (accidentally maybe) plug a
> mono into the stereo and everything would be fine (accept for losing
> the stereo channels in your ears).
>
> I have not done this but the question was raised when I was chatting
> with a new K3 owner.
>
> 73, phil, K7PEH
>
> ______________________________________________________________
> 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