[hpsdr] Penny Whistle Mech Alignment

[John Koster]

Question?

When you are placing the board, are the silk screen logos facing you and 
not the heat sink?

On Sun, 11 Nov 2012, John wrote:

> ***** High Performance Software Defined Radio Discussion List *****
> 
> 
> I have a problem mechanically aligning the Penny Whistle circuit board 
> to the heatsink.
> 
> Either the mechanical drawing is in error or the part in my TAPR kit was 
> made wrong.  If the board is first mounted loosly with screws in the 
> four inner hex post postiions, the holes for the cap screws are well 
> centered, but the hex posts at each board corner do not line up.  If the 
> four corner holes holes in the heatsink were moved toward the top of the 
> heatsink it would work, but I suspect it is the six center holes that 
> may be off because if only they were moved the board would also be 
> centered on the heatsink.
> 
> These holes are far enough off that none of the corner screws can be 
> screwed in, even when the center screws are loose enough to slide the 
> board around a little.
> 
> I tried to take a picture of my board.  The picture is a bit confusing 
> as the access holes for the cap screws are actually centered on them, 
> but the picture doesn't show that.
> 
> Picture:
> http://www.n-connect.net/radio/Ham_Pix/Whistle%20Alignment.JPG
> 
> It would have been be easy to check hole alignment with the bare Penny 
> Whistle board and heatsink.  Unfortunately, I didn't do that.  I do know 
> that shipping of my TAPR kit was delayed until they had heatsinks, so 
> maybe it is just a manufacturing problem.
> 
> Has anyone else had a problem with this?
> 
> John,  WoGN
> 
> 
> 
> 
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-- 
73,
John, W9DDD

Sent from my Linux PC


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