Left channel humming/buzzing

jamesad1994 · 440

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Offline jamesad1994

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on: November 10, 2019, 08:41:47 AM
Hi everyone,

My stock Crack has recently developed some electrical noise in the left channel. I just discovered that I can reproduce the noise by tapping or shaking my desk, where the Crack sits directly on top of. I also started using a replacement tube, the 6AS7G, about a week ago - I think the issue is correlated to the new tube. Any thoughts from the Bottlehead community on a potential fix?

Thanks!



Offline Paul Birkeland

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Reply #1 on: November 10, 2019, 08:49:44 AM
Is the noise still there if you put the old tube back in?

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man


Offline jamesad1994

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Reply #2 on: November 10, 2019, 09:03:10 AM
Just put in an old tube, noise is gone. Could it just be that I got a faulty tube?
« Last Edit: November 10, 2019, 09:05:28 AM by jamesad1994 »



Offline Paul Birkeland

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Reply #3 on: November 10, 2019, 10:34:28 AM
It might be that you need to run that tube for a few days to cook in a bit, then the noise will likely go away.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man