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Author Topic: Amp problem  (Read 5298 times)
JD0x0
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« on: August 16, 2008, 01:23:00 AM »
My overtone seems to be acting up. when i strum a chord i get a bad unmusical distortion, the harder i strum the worse it gets.
It happens mostly on the clean channel the OD is affect as much but there is some dregrading of the sound
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mcinku
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« Reply #1 on: August 16, 2008, 01:14:51 PM »
First thing I would try is to change V1 tube.
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JD0x0
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« Reply #2 on: August 16, 2008, 05:27:17 PM »
i changed the V1 and V3 tubes with no differnce in the problem Cry
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mcinku
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« Reply #3 on: August 16, 2008, 06:16:35 PM »
Are you aware that changing V3 tube requires to set the PI trimmer?

Really don't know what could be wrong... did you check if there's any cold solder on the V1 tube?

I guess you will have to take your amp to a tech.
 Huh?
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hywelg
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« Reply #4 on: August 16, 2008, 11:31:09 PM »
Quote from: mcinku on August 16, 2008, 06:16:35 PM
Are you aware that changing V3 tube requires to set the PI trimmer?

Really not necessary. I don't think Nik even balances the PI tube before sending an amp out, I think he just sets it to 12 o'clock. My amp tech set mine with a scope but said if I change the tube it'll be fine and not to worry about it.
« Last Edit: August 16, 2008, 11:39:55 PM by hywelg » Logged
nickm57
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« Reply #5 on: August 17, 2008, 02:30:49 AM »
Tap your power tubes. They sometimes can rattle giving you a ghost note. Or plug straight  into the power amp  of the FX loop if you are still getting it there,power amp problem, if not pre-amp.
« Last Edit: August 17, 2008, 02:33:31 AM by nickm57 » Logged
JD0x0
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« Reply #6 on: August 17, 2008, 06:56:10 AM »
the problem seems to have gone away. but thanks for your help everyone
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