Random Static Noise in one channel [resolved]

hpleung · 4536

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Offline hpleung

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on: September 10, 2022, 12:00:46 PM
Hi,

I completed the Kaiju months ago and it worked fine. It is also regularly used - like daily. Recently, I detected a static noise coming from the right channel. I narrowed it down to the amp; that is it is not the speaker or speaker connection.

I am planning to go and retouch / re-solder every connection in the right channel. Are there any better suggestion?

Thanks.
« Last Edit: September 19, 2022, 04:29:18 PM by Paul Birkeland »



Offline Paul Birkeland

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Reply #1 on: September 10, 2022, 03:25:45 PM
I would suggest plugging in a cheap disposable speaker with the amp running on your workbench and poke around with a wooden chopstick.  You should be able to activate the noise by poking the part of the circuit that's problematic. 

As always it's also a good idea to swap tubes between channels just to be sure that's not a contributing factor, and sometimes unplugging and plugging back in tubes will scrape oxidation off the pins (especially on 9 pin tubes).

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline hpleung

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Reply #2 on: September 19, 2022, 12:42:05 PM
Thanks. This has been fixed.



Offline Paul Birkeland

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Reply #3 on: September 19, 2022, 04:29:09 PM
What did you end up finding?

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline hpleung

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Reply #4 on: October 07, 2022, 09:14:10 AM
I simply redid the solders and it seems to have fixed it.