[Elecraft] KPA100 mechanical assembly question

[wd4lst at windstream.net]

Don,
Many thanks for the response. I just wanted to double check on that. I guess what 
threw me was the previous step to remove the anodized coating.

"Locate the two machined standoffs on the pedestal, labeled S in
Figure 29. Lay the sanding block across the top surfaces of both
standoffs. Keeping the block parallel to the pedestal at all times, carefully
sand off just enough of the black finish to expose the top surfaces of the
standoffs. Do not remove any further material, since this may affect
proper spacing of the power transistors." 

That combined with the absence of solder mask around the mounting holes in the board
caused me to second guess what was required. I did not want the 
finals to start flying due to a missing ground.
Thanks again.
I will proceed as if I knew what I were doing :)
-Pete

> 
> From: "Don Wilhelm" <w3fpr at earthlink.net>
> Date: 2007/03/08 Thu PM 11:24:25 CST
> To: <wd4lst at windstream.net>, 
> 	<elecraft at mailman.qth.net>
> Subject: RE: [Elecraft] KPA100 mechanical assembly question
> 
> Pete,
> 
> The heat sink assembly is an extrusion, and may have some warp to it.  The
> assembly is referenced on a CNC machine to cut the positions of the threaded
> rods that have standoffs around them to the same height.  The two bosses on
> the transistor mounting platform are not considered in this procedure.  The
> only parameter is that the bosses not be too high (low is OK).
> 
> Yes, this is a NON-ISSUE.  Follow the instructions in the manual.  Q3 and Q4
> are mounted first
> 
> 
> 


Pete Axson
WD4LST
17901 NE 18th Ave
Citra, FL 32113