[Elecraft] K3 Hardware Upgrades

[Brian Alsop]

Natural questions:
1) What are symptoms of them not being cut?
2)  About what vintage main RF board are they not cut?

At least it looks easy to get to.

73 de Brian/K3KO

David Pratt wrote:

>Although I don't recall seeing anything about it on here, the latest 
>KRX3 Errata Sheet C-6, dated 3 March 2009 refers to the cutting of two 
>tracks on the main RF board to "ensure D-A converters always receive the 
>proper signal level".
>
>I have yet to do this mod on my K3.
>
>73
>
>David
>
>In a recent message, Dave G4AON <elecraft at astromag.co.uk> writes
>  
>
>>I have now done all the hardware mods to my K3, none were particularly
>>difficult to do. I even did modifications that are of no use to me, such
>>as the -ve ALC and "pull up" resistor mods... At least my K3 is close to
>>the same mod state as the current production units. The AF amplifier
>>(replacement RF choke feeding the audio amp) did not seem to make any
>>difference at my station, I am using a pair of HiFi bookshelf speakers.
>>Likewise the line out mod didn't appear to make any difference, although
>>for the most part I run Amtor or Pactor rather than sound card data modes.
>>
>>There is no real reason to not do these mods, they have no unwanted side
>>effects and may in fact be of benefit.
>>    
>>