Hi Wes,

thanks for your note.

Yes, it is the second mixer that needs improvement. I have the mods on paper 
and we are waiting for a volunteer to lend us a K3 for some time ... this will 
need soldering work...hi

I will keep you posted once tested

73

Gian
I7SWX





>________________________________
> Da: Wes Stewart <[email protected]>
>A: "[email protected]" <[email protected]>; "[email protected]" 
><[email protected]>; Giancarlo Moda <[email protected]> 
>Inviato: Venerdì 1 Marzo 2013 19:02
>Oggetto: Re: [Elecraft] K3 mods by I7SWX
> 
>
>It's the second mixer that needs improvement.
>
>Wes  N7WS
>
>--- On Fri, 3/1/13, Giancarlo Moda <[email protected]> wrote:
>
>
>>From: Giancarlo Moda <[email protected]>
>>Subject: Re: [Elecraft] K3 mods by I7SWX
>>To: "[email protected]" <[email protected]>, "[email protected]" 
>><[email protected]>
>>Date: Friday, March 1, 2013, 10:18 AM
>>
>>
>>Hi Milverton,
>>
>>I am not sure about your question, sorry.
>>
>>It is not a pitch to Elecraft, if I understand what you are asking for. I am 
>>not doing business but enjoying fiddling with radio... certainly we have to 
>>recuperate the investment and cover the assembler job. The kits are available 
>>for interested
 Hams.
>>
>>Thanks and best 73
>>
>>Gian
>>I7SWX
>>
>>
>>
>>
>>
>>>________________________________
>>> Da: "[email protected]" <[email protected]>
>>>A: Giancarlo Moda <[email protected]>; "[email protected]" 
>>><[email protected]> 
>>>Inviato: Venerdì 1 Marzo 2013 17:56
>>>Oggetto: Re: [Elecraft] K3 mods by I7SWX
>>> 
>>>
>>>Is this a sales pitch to Elecraft, or just to interested parties?
>>>Or, could it be directed at both? 
>>>Not in any way
 discounting the mods, just wondering.
>>>
>>>((((73)))) Milverton.
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>>________________________________
>>>> From: Giancarlo Moda <[email protected]>
>>>>To: "[email protected]" <[email protected]> 
>>>>Sent: Friday, March 1, 2013 7:40 AM
>>>>Subject: [Elecraft] K3 mods by I7SWX
>>>> 
>>>>
>>>>
>>>>Dear Twan,
>>>>
>>>>thank you very much for your comment.
>>>>
>>>>Wayne is right with his reply. 
>>>>
>>>>
>>>>Also right is the comment from Keith, XE3/K5ENS
>>>>
>>>>Then again if
 you want your K3 to be one of the top .1% these mods will help.
>>>>
>>>>
>>>>Certainly these are not mods for "normal" user, but those "looking for the 
>>>>hair in the egg" any little improvement can make a difference.
>>>>
>>>>Please let me explain how the idea to modify the K3 started. I have dome 
>>>>mods for many commercial equipments from the 70's to the beginning of this 
>>>>century. 
>>>>
>>>>
>>>>I was very curious to see if it could be possible to squeeze out some 
>>>>additional performances from the K3. Certainly, I was not expecting any 
>>>>"flashing results" like obtained on the above equipment. I discovered that 
>>>>the K3 had a removable mixer... what a chance, a way to fiddle with a nice 
>>>>system without going to impair a warranty or damage the radio. 
>>>>
>>>>One Italiam OM, IT9BLB, of
>>well known Contest stations IT9BLB, IH9P and IR9Y, told me that they had some 
>>difficulties to copy
 week station with the K3 while their modified FT1000MP (more complex mods) was 
making easier the copy. That pushed me to do a trial and  I went ahead with my 
friend Sergio, IK8TNG. From what we thought interesting results we designed  a 
swappable H-Mode Mixer  and made it available assembled and tested to operators 
without the need to use a soldering iron. Then I studied some additional 
changes, experimented already in all the other modified radio.
>>>>
>>>>
>>>>If you do really like to see changes, and you have no money for a K3 but 
>>>>you possess a K2, then you will need to use a soldering iron and apply 
>>>>similar mods to it. The problem is space availaibility.
>>>>
>>>>You asked  Elecraft "Are there any plans in the near future to build a new 
>>>>mixer module  with this technology? " I am not the one to answer, but I do 
>>>>not see any problem
>>why Elecraft could not use the H-Mode Mixer in their
 expected (?) new "K4" in the 2 transformer I7SWX configuration or in the 
original 3 transformer G3SBI, using the FST3125 or the FSA3157 switches. 
>>>>
>>>>Note for Eric and Wayne, my configuration is available for you,  I will 
>>>>request only a few million $$$$$ ... hi
>>>>
>>>>The H-Mode Mixer is in the public dominium, probably the only "legal" 
>>>>aspect is reference to the inventor, G3SBI, and maybe to me for the 2 
>>>>transformer one.
>>>>
>>>>
>>>>Best 73
>>>>
>>>>Gian
>>>>I7SWX
>>>>
>>>>
>>>>Message: 17
>>>>Date: Thu, 28 Feb 2013 13:00:12 -0800
>>>>From: Wayne Burdick <[email protected]>
>>>>To: "Twan at pa0kv.nl" <[email protected]>
>>>>Cc: [email protected]
>>>>Subject: Re: [Elecraft] K3 mods by I7SWX
>>>>Message-ID: <[email protected]>
>>>>Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
>>>>
>>>>Twan,
>>>>
>>>>The K3 is one of the highest-performance radios available (very high  
>>>>on everyone's list, including Sherwood's). A small additional  
>>>>improvement in one or two parameters may be of interest to a few  
>>>>operators. The other 99.9% of K3 owners do not need to make any  
>>>>modifications.
>>>>
>>>>73,
>>>>Wayne
>>>>N6KR
>>>>
>>>>On Feb
 28, 2013, at 12:33 PM, Twan at pa0kv.nl wrote:
>>>>
>>>>> Hi!
>>>>> I just read all about the I7SWX mods and I was wondering what  
>>>>> Elecraft's point of view is in this?
>>>>>
>>Are these mods really a major improvement? (Are is it 'crap'..)
>>>>> Are there any plans in the near future to build a new mixer module  
>>>>> with this technology?
>>>>> What about the other mods;
>>>>> - terminating the filter bank
>>>>> - PSU voltage regulator noise
>>>>>
>>>>> As allways.. very interested in K3 improvements 8-)
>>>>>
>>>>> 73's  Twan - PA0KV
>>>>>
>>>>> K3 - 1770
>>>>>
>>>>
>>>>
>>>>Message: 20
>>>>Date: Thu, 28 Feb 2013 13:32:03 -0800 (PST)
>>>>From: Keith-K5ENS <[email protected]>
>>>>To: [email protected]
>>>>Subject: Re: [Elecraft] K3 mods by I7SWX
>>>>Message-ID: <[email protected]>
>>>>Content-Type: text/plain; charset=us-ascii
>>>>
>>>>Then again if you want your K3 to be one of the top .1% these mods will 
>>>>help.
>>>>
>>>>
>>>>73,
>>>>
>>>>Keith, XE3/K5ENS
>>>>
>>>>--
>>>>View this message in context: 
>>>>http://elecraft.365791.n2.nabble.com/K3-mods-by-I7SWX-tp7570516p7570520.html
>>>>Sent
 from the Elecraft mailing list archive at Nabble.com.
>>>>______________________________________________________________
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>>>>
>>>>
>>>
>>>
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