[Elecraft] K3 HAGC MOD using THRU-HOLE COMPONENTS - STOP THEPRESSES!!

[John]

Tom:

In my short "relationship" with Elecraft gear (K3 #77) and this reflector, 
it is very clear to me that the caliber of your work and contributions is 
SUPERB.

Please, just don't transpose numbers ever again ;-)!

Thanks.......73 John K4NP
----- Original Message ----- 
From: "Tom Hammond" <n0ss at embarqmail.com>
To: <elecraft at mailman.qth.net>
Sent: Monday, March 31, 2008 6:36 PM
Subject: [Elecraft] K3 HAGC MOD using THRU-HOLE COMPONENTS - STOP 
THEPRESSES!!


> ATTENTION K3 USERS who have made, or who are about to make the HAGC
> mod using through-hole (leaded) components.
>
> I (N0SS) wrote the modification documentation for this mod, so the
> following it my fault, not that of Elecraft.
>
> Just this afternoon, it was brought to my attention that the two
> LEADED resistors which are to be soldered in parallel with R41 & R2
> on the K3 RF board, should be 47K 1/4W devices and NOT the 100k 1/4W
> devices which I specified in the documentation.
>
> The problem arose from the fact that the two resistors (R41 & R42)
> which were to be paralleled with leaded devices were 100K values and
> that the two leaded resistors paralleling them were to be 47K devices.
> When I wrote the docs, and laid out the illustration, I managed to
> reverse the values, thus showing the added resistors to be 100K instead
> of 47K.
>
> If you received an HACG MOD kit from Elecraft, DO NOT use the 100K 1/4W
> resistors contained in the package, but use 47K 1/4 devices across R41 &
> R42 on the K3 RF board.
>
> THIS APPLIES ONLY TO THE THRU-HOLE VERSION OF THE HAGC MOD. IT DOES _NOT_
> APPLY TO THE SMD VERSION OF THE MOD.
>
> As a stop-gap, I have posted the revised docs to my web site at:
>
>   http://www.n0ss.net/k3_hacg_mod_thru-hole_v1r6_rev_31mar08.pdf
>
> Note: blank spaces in the link above are filled with underscores which
>       generally cannot be seen if your e-mail client auto-underlines
>       links.
>
> New (revised) documentation has now been sent to Elecraft and it will be
> up on their web site soon.
>
> I sincerely apologize for this error and I hope it will not cause 
> significant
> problems for anyone.
>
> 73,
>
> Tom Hammond   N0SS
>
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