K2 Mods and changes

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K2 Mods and changes

Dave Anderson, K4SV
Hi All,

I have an un-built K2 kit SN 3086.

Is there a good place to look for mods and changes between Rev D and Rev G of the manual?  Elecraft site has a bunch of stuff but I must have missed this important document.

My goal is to make whatever changes to bring my un-built K2 to 2009 Rev's and necessary mods before starting assembly.

My CPU rev is 2.04, purchased later when I bought the 100w amp in anticipation of assembling the K2.

Advice welcome

Thanks,
 
Dave Anderson, K4SV
Tryon, NC
 828 777-5088
 
www.K4SV.com
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Re: K2 Mods and changes

Don Wilhelm-4
Dave,

Your K2 has all the A to B mods already on the board.  The only
additions since your K2 serial number are the Keying Waveshape Mod and
the addition of diodes D40 and D41 for the Extremely Strong Signal
Handling Mod.  You can find the information at the Elecraft website.  
The keying waveshape mod requires the firmware level 2.04p and K2IOC v.
1.09 - check the letter on your 2.04 firmware to be certain it qualifies.

73,
Don W3FPR

Dave Anderson, K4SV wrote:

> Hi All,
>
> I have an un-built K2 kit SN 3086.
>
> Is there a good place to look for mods and changes between Rev D and Rev G of the manual?  Elecraft site has a bunch of stuff but I must have missed this important document.
>
> My goal is to make whatever changes to bring my un-built K2 to 2009 Rev's and necessary mods before starting assembly.
>
> My CPU rev is 2.04, purchased later when I bought the 100w amp in anticipation of assembling the K2.
>
> Advice welcome
>
> Thanks,
>  
> Dave Anderson, K4SV
> Tryon, NC
>  828 777-5088
>  
> www.K4SV.com
>  
>
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Re: K2 Mods and changes

Don Wilhelm-4
In reply to this post by Dave Anderson, K4SV
Dave,

There is one other change that is needed on your K2 to bring it up to
date, and that is the K2 Temperature Compensated PLL Reference Mod
(E850138).  Thanks to Gary Hvizdak (of Rework Eliminator fame) for
bringing that omission to my attention.  That change was included with
K2s above SN 3446, so it is not included with your K2 kit.

73,
Don W3FPR

Dave Anderson, K4SV wrote:

> Hi All,
>
> I have an un-built K2 kit SN 3086.
>
> Is there a good place to look for mods and changes between Rev D and Rev G of the manual?  Elecraft site has a bunch of stuff but I must have missed this important document.
>
> My goal is to make whatever changes to bring my un-built K2 to 2009 Rev's and necessary mods before starting assembly.
>
> My CPU rev is 2.04, purchased later when I bought the 100w amp in anticipation of assembling the K2.
>
> Advice welcome
>
> Thanks,
>  
> Dave Anderson, K4SV
> Tryon, NC
>  828 777-5088
>  
> www.K4SV.com
>  
>
______________________________________________________________
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K2 Mods and changes Conclusion

Dave Anderson, K4SV
Thanks to all who replied, I will make the nessessary changes and start assembly of my K2.

Bets 73s
 
Dave Anderson, K4SV
Tryon, NC
 828 777-5088
 
www.K4SV.com
______________________________________________________________
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Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
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Please help support this email list: http://www.qsl.net/donate.html