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FiliphSlim · 08-12-2008, 10:23 AM

Well, now the tube is out, just have to replace it. I found one tube in my room, new & sealed of course, but I don't know if it would fit.

It's a "groove series, electron tube" On the tube it says GT12AX7C.....

It also says "ECC 83" on both this one, and the old tube which I took out of the amp

Would it work to just put that one where the old one was or would I blow it up?

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EDIT: I tried and it worked, I believe that the sound is improved but with that buzz it's hard to even hear it.

I also noticed that the buzz is in the key of G (?!) so when I play in G it sounds okay, hehe...

But what could be the cause of this buzz? Broken/burnt ground, bad transistor or some cooked component?

I don't know..

Thank you for your help this far, it's been awesome, but now I need help to solve this buzz problem....

08-12-2008, 10:23 AM	#16 (permalink)
FiliphSlim Junior Member Join Date: Aug 2008 Posts: 10	Re: Marshall Valvestate, Messed Up Well, now the tube is out, just have to replace it. I found one tube in my room, new & sealed of course, but I don't know if it would fit. It's a "groove series, electron tube" On the tube it says GT12AX7C..... It also says "ECC 83" on both this one, and the old tube which I took out of the amp Would it work to just put that one where the old one was or would I blow it up? ************************************************ ********************** EDIT**: I tried and it worked, I believe that the sound is improved but with that buzz it's hard to even hear it. I also noticed that the buzz is in the key of G (?!) so when I play in G it sounds okay, hehe... But what could be the cause of this buzz? Broken/burnt ground, bad transistor or some cooked component? I don't know.. Thank you for your help this far, it's been awesome, but now I need help to solve this buzz problem....