[Elecraft] Re: KPA100 assembly question

Tue Jun 3 12:53:00 2003

Thanks for the explanation Eric.  Everything fits so well that I wanted
to ask before proceeding, in case I had misunderstood the manual.

73,
Bob, N7XY

On Tue, Jun 03, 2003 at 09:30:39AM -0700, Eric Swartz WA6HHQ - Elecraft wrote:
> Hi Bob,
> 
> The spot you mention is a result of milling the heatsink surface slightly 
> at that point to compensate for tolerance build up in the overall flatness 
> of the heatsink when it is extruded. There still will be slight variations 
> in the flatness of the heatsink mounting locations, but they should not be 
> a problem. Its OK to slightly flex the board on installation.  .025" on a 
> PC board the size of the KPA100's is not a problem.
> 
> 73, Eric  WA6HHQ
> 
> 
> Bob Nielsen wrote:
> >Wayne,
> >
> >The manual mentions shorter standoffs at the front edge but those are
> >where the heat shield is installed.  I am referring to an earlier step
> >on page 35 where the five 3/8" standoffs which support the PC board on
> >the heatsink are installed (there are also two standoffs which are part
> >of the pedestal).  The heatsink has a milled area at the back where the
> >standoff nearest the fan is mounted which is ~.025 or so below the rest
> >of the heatsink, so that standoff is lower than the others.
> >
> >Bob
> >
> 
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-- 
Bob Nielsen, N7XY                          [email protected]
Bainbridge Island, WA                      http://www.n7xy.net
IOTA NA-065, USI WA-028S 