[Elecraft] K3s Odd sound vibrations - Hypothesis, Steps, Conclusion, and Request.

[Ron D'Eau Claire]

Jerry: Do you have the KRX3 sub receiver installed and, if so, is there a
foam pad on the back of the speaker magnet shield that presses against the
top of the sub receiver enclosure? (See pg 46 of the Rev H KRX3A manual.)

If that pad (or the magnet shield) is missing you'll have the speaker in
close proximity to the steel sub receiver enclosure and any vibration of the
top cover would be coupled to the sub receiver itself. It's possible the
speaker magnet shield might even touch the top of the sub receiver enclosure
when vibrating. 

73, Ron AC7AC

-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Vic
Rosenthal 4X6GP/K2VCO
Sent: Tuesday, February 16, 2016 11:43 PM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3s Odd sound vibrations - Hypothesis, Steps,
Conclusion, and Request.

Why use adhesive (which I suspect Elecraft will tell you not to do)? You can
probably solve the problem by shimming the core with a piece of soft plastic
or foam, or putting a piece of tape under it.

73,
Vic, 4X6GP/K2VCO
Rehovot, Israel
http://www.qsl.net/k2vco/

On 17 Feb 2016 05:54, Jerry Moore wrote:
> I resent the original and added a step. I get the buzzing with the 
> monitor down low. Increasing the level allows me the ability to better 
> isolate and hear it.
> If you remove the screws from the top cover and hold it in your hand 
> there is no buzzing or distortion at any monitor level, or volume 
> level. The harmonic distortion appears to be completely and easily 
> resolvable but I need an approved adhesive to use. I'm not messing up 
> my nice radio without support and approval from the manf.
>
> 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.
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