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Thank you!

checking the build, I just noticed that I did the stock version, not the Tom's. Didn't have time to do the mods, just removed R9, as it is optional, and to my ear the strange noises are slightly better, but maybe they stay the same. Will change components this week and see how it goes.

Thanks again!

I think I catured the funny things my unit is doing:


[soundcloud]https://soundcloud.com/aplastaarteche/fizzy-tube[/soundcloud]

[soundcloud]https://soundcloud.com/aplastaarteche/popping-tube[/soundcloud]

Thanks again!

Sorry, it's a Musikding kit, and I did Tom's variation. The power supply is a cheap Harley Benton Power Plant. I'm gonna try to record.

Thank you for your answer!

I have a similar problem with my Tube Driver. With a JJ 12AX7, depending on the biasing, there's some kind of oscillating noise as the envelope decays on the lower side -with the trimmer all the way right-, or a noisy-popping tail in the upper notes when it's on the left. Anywhere in the middle, you can dime one or the other, but you can't get rid of both. With a CEI 12AT7 tube the sound is huge, much better than with the JJ but a sine wave is always there, biasing changes the pitch of it, but doesn't disappear. I'm eager for any idea that could help.