[Elecraft] K3S speaker vibration/whine

[ae4pb at carolinaheli.com]

Yes, I found something about if the speaker frame gets warped it can affect the speaker cone. Maybe I over-tightened the speaker and have it warped. I'll take the cover off, remove the speaker and see what it sounds like without being installed. If that 'fixes" the issue then I'll investigate further. It's a minor thing but something I want to resolve.

Jerry Moore
CDXA, INDEXA, SKCC, Fists
AE4PB, K3S - S.N. 010324
http://www.qrz.com/db/AE4PB
An Amateur is - Considerate, Loyal, Progressive, Friendly, Balanced, and Patriotic.

<snip>
-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Ron D'Eau Claire
Sent: Thursday, October 22, 2015 12:43 PM
To: 'Randy Moore'
Cc: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3S speaker vibration/whine
Are all the top screws in place, including the chassis stiffener bar that is mounted on the KPA3 shield and attaches to the top with three screws?
When assembled, there are no "vertical metal pieces that contact the top" that are not secured by screws. 
73, Ron AC7AC
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