[Elecraft] KC9EHQ New KSB2 revision issues

[R Thompson]

I'm just finishing my KSB2 board, and I did encounter this problem at
only one hole, the cathode for D1.  Otherwise it all went together as
per the instruction, and a bonus, somehow I ended up with a few
unexpected spare parts, such as a 2N3906, two extra 2.2mfd caps, and a
couple of resistors.

          Ron VE8RT

On Sun, 2011-07-24 at 21:55 -0400, Don Wilhelm wrote:
> 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.
> >
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