[Elecraft] K3 F Gain mod

Matt Zilmer mzilmer at verizon.net
Fri Jan 29 17:44:50 EST 2010


The K3 electronics seems to be assembled with a "clean" SMT process,
which means that only solder paste is used to hold the components on
the board during reflow.  The boards are designed for rework.

You should not experience the same problem with K3 PCBA's.  I've done
most of the approved rework to the K3 and had no trouble like this.

73,
matt W6NIA
K3 #24

On Fri, 29 Jan 2010 21:40:33 +0000, you wrote:

>The instructions have you clipping one SMT resistor and then removing 
>the pieces.
>
>I've did a trial of this method on a junk PCB here.
>
>At least on the board I used, there apparently is some kind of adhesive 
>under under the chip.  The clipping process seems to remove the solder 
>resist and perhaps any PCB traces under the chip.
>
>Is there anything under R8 that can be damaged?
>
>(Guess not, since nobody complaining.  A blow up of the pix doesn't seem 
>to show anything either)
>
>73 de Brian/K3KO
>______________________________________________________________
>Elecraft mailing list
>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:Elecraft at mailman.qth.net
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html


More information about the Elecraft mailing list