Posted by
Gary Hinson on
Mar 20, 2012; 5:53am
URL: http://elecraft.85.s1.nabble.com/KPA500-Assembly-Question-tp7387836p7388150.html
Hi Dave.
I can't say for sure but the original screws for the plate were a fraction
too long, causing "pops" when the PA heated up due to thermal expansion.
Some of us simply filed a fraction off the original screws to seat the plate
more tightly, and that solved out problem. In other words, slightly short
screws are better.
4-to-5 threads sounds to me like it ought to work OK, so I'd settle for that
... but like you I'd be a bit concerned about the inventory of parts, just
in case those screws are destined to be used elsewhere. Are you sure there
are no other screws in a little additional envelope somewhere?
73
Gary ZL2iFB (*very* happy owner and daily user of a KPA500 - love the QRQ
QSK and no-tune QSYs)
> -----Original Message-----
> From:
[hidden email] [mailto:elecraft-
>
[hidden email]] On Behalf Of Dave Anderson, K4SV
> Sent: Tuesday, 20 March 2012 3:16 p.m.
> To: Elecraft
> Subject: [Elecraft] KPA500 Assembly Question
>
> Hi All,
>
> Thought I would bounce this question off those who have assembled the
> KPA500.
>
> I am building Serial #439
>
> I am at page 22 where it says to install 5 - 5/16" Black Flat Head screws
in the
> plate attached to the PA. I can not find any 5/16" screws in the hardware
> bag. I found two in the spares bag and two installed in the AC fuse
> block. Checked everything else. Stephanie either missed it totally or
the
> manual is incorrect. Up to this point she has been spot on.
>
> Could this be an error where they really meant to use 3/16"? I tried
3/16"
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