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Old 28th November 2006, 07:47 AM   #1
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Default How to change tubes ??? (NEWBIE)

Hi to everybody.
I have a Music angel with n2 12AU7, n2 12AT7WA and n4 KT88.
I would like to change the first two kind (I have them from Mullard), but I don't know if something can be broken.
Reading the other posts I saw something about the bias. There is a bias for this kinds of tubes too?
Bye
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Old 28th November 2006, 09:26 AM   #2
SHiFTY is offline SHiFTY  New Zealand
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Turn the amp off, and pull out the old, plug in the new and play. Small signal tubes (12AU7 etc) are autobias and do not need adjustment.
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