[Elecraft] KC9EHQ New KSB2 revision issues

[Don Wilhelm]

David,

I will reply anyway, because a situation like that is of extreme 
interest to me.

That is a a real mystery.

I did the pilot build on the new KSB2 board and encountered no problems 
with those diodes.  Something may have changed since I did that build, 
and the only two things I can think of are that the 1N4007 leads got 
thicker or the holes got smaller at the board manufacturing house.  The 
board I worked with was *not* pre-production since Wayne was quite 
anxious to get this new board into production, he took the risk of 
cutting the new board in before I received my field test kit.

The normal holes for the 1N4007 diodes are the same size as for 
resistors and other components even though the 1N4007 leads are larger, 
they will fit in most any hole designed for resistors - that is true for 
all the K2 boards that I know about.  Do you have other unassembled 
options for the K2?  If so, try the 1N4007 leads in a hole intended for 
a resistor on any of your other boards.

73,
Don W3FPR

On 7/24/2011 9:02 PM, David Dietrich wrote:
> Hi All!
>
> I already E-mailed Wayne about this, but I thought I would share this with the rest of the group in case anyone got one of these recently and hasn't assembled it yet.  I bought the KSB2 with my K2...Unfortunately, when I bought the radio and options, the KSB2 was out of stock.  It took a few weeks to get this option because some components were no longer available, and Wayne and the Elecraft team had to perform some redesign work.  I got one of the new boards, and the assembly was going by swimmingly this afternoon until I hit a snag...ALL if the 1N4007 diodes will NOT fit into their holes because the leads are too thick.  This is more than a "tight fit"...They just plain don't want to go in at all.  I am not going to attempt to widen the holes on my own as there isn't much real estate to work around, and I don't want to damage traces.
>
> Just an FYI, and no need for replies.
>