Marshall 1959HW Preamp Tube Blown

TrippyStormtrooper

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EDIT: Fixed. Was the ECC83 in V1.

Playing my 1959HW today and the volume suddenly dropped. Testing the amp, the Normal Channel seems to be fine but the Hi Treble makes no noise. Is it safe to assume this is a preamp tube? Or is something else possibly at play?
 
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Cjsinla

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Do you have a spare 12ax7 to swap with the tube in the first position? I’d try that as it does sound like it could possibly be your V1 tube. Either that or a dirty input jack, that’s where I would start looking.
 

TrippyStormtrooper

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Do you have a spare 12ax7 to swap with the tube in the first position? I’d try that as it does sound like it could possibly be your V1 tube. Either that or a dirty input jack, that’s where I would start looking.
It was exactly that. Swapped the ECC83 in V1 and that fixed it. Thanks!
 


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