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Topic: Scratchy volume pot both channels vibrasonic |
Ben Edmonds
From:
Greenfield, Massachusetts, USA
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Posted 23 Apr 2016 1:44 pm |
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I want to buy this amp but both volume pots are scratchy when turned. They both were cleaned to no avail. This is the one made in 96 that has a steel and guitar channel. I don't mind the scratch but if it is predictive of some larger problem I don't want it and some say it may be an issue in the output stage. Also the output tube sockets need re tetensioning so I don't know if that would be a contributing factor.
If anyone can guide me that would be great
Thanks[/quote] |
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Jerry Kippola
From:
UP Michigan, USA
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Posted 23 Apr 2016 4:38 pm
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| coupling caps could be leaking dc, and/or if it has jj 12ax7 tubes, i've seen them leak dc out the input grid pin |
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Donny Hinson
From:
Glen Burnie, Md. U.S.A.
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Posted 24 Apr 2016 5:03 am
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How did they clean them? The chassis must be removed to do a proper pot cleaning - just taking off the knob and spraying the pot shaft doesn't cut it. 
| Quote: |
| ...some say it may be an issue in the output stage. |
They're wrong. |
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Ben Edmonds
From:
Greenfield, Massachusetts, USA
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Posted 24 Apr 2016 8:28 am
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| They said they pulled the chassis but I have to take them on their word. Why are they wrong? I'm curious only because I was wondering how they drew that conclusion myself |
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