Weird tube noise...

Tubes Asylum

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from my 12AU7 tube. When I finished building Transcendent Sound Masterpiece 300 preamp, I had a scratchy type of noise from the right channel it sound like a bad pot and only made the noise when I turn up or down the volume, other than that it was dead quiet. So I lived with it until that same tube started to become noisy, I then switched it to the left channel and that weird noise followed the tube.

So I thought the whole time it was a defective pot (TKD) and was kind of pissed cause those pots are not cheap. I put in new 12AU7's (same brand) and its all quiet now no matter if I turn up or down the volume. I never had that happen before with tubes.

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Topic - Weird tube noise... - Cougar 18:45:57 05/26/23 (7)

RE: Weird tube noise... - Triode_Kingdom 23:10:35 05/26/23 (6)

It was the tube. - Cougar 07:22:57 05/27/23 (5)

RE: It was the tube. - Triode_Kingdom 18:32:47 05/27/23 (2)

At first... - Cougar 18:49:40 05/27/23 (1)

RE: At first... - Tre' 16:30:51 05/28/23 (0)

RE: It was the tube. - Jim McShane 12:00:17 05/27/23 (1)

I did check and... - Cougar 18:52:03 05/27/23 (0)

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