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Post subject: Re:
Posted: Tue Aug 14, 2012 8:26 am
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shimmilou wrote:
Hi bluesky636,

This might sound strange, but it could be the chassis resonating. Since it only happens on that certain note, it could be a "sympathetic" vibration of something loose. Make sure that all of the chassis mounting screws are very tight, and the tube socket mounting screws too. Anything that's loose on the amp can vibrate only at certain notes. I am going by your description of the noise, it sounds just like a problem that I had on my little champ. I found that I could stop the "fizzy" secondary noise by pushing in on the bottom of the chassis. Tightening the screws got rid of the noise. Just a thought. :idea:

This was what I was thinking also.


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Post subject: Re: Re:
Posted: Tue Aug 14, 2012 3:48 pm
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tbazzone wrote:
shimmilou wrote:
Hi bluesky636,

This might sound strange, but it could be the chassis resonating. Since it only happens on that certain note, it could be a "sympathetic" vibration of something loose. Make sure that all of the chassis mounting screws are very tight, and the tube socket mounting screws too. Anything that's loose on the amp can vibrate only at certain notes. I am going by your description of the noise, it sounds just like a problem that I had on my little champ. I found that I could stop the "fizzy" secondary noise by pushing in on the bottom of the chassis. Tightening the screws got rid of the noise. Just a thought. :idea:

This was what I was thinking also.


Hilarious to see my own thread come back as a zombie. :lol: :lol: :lol:

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