#2
nope. only if you change the power tubes to different models.
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#4
Quote by greeny23
nope. only if you change the power tubes to different models.


Not to hijack, but for reference, I thought you should bias whenever you chaange tubes, not just different brand?
#5
The TH-30 is cathode biased - you don't need to bias it at all.
Gilchrist custom
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#6
Quote by DeadlySurfer
Not to hijack, but for reference, I thought you should bias whenever you chaange tubes, not just different brand?


Brand doesn't matter- tube type does. My amp has a bias switch for either 6l6s or El34s
#7
Quote by Cathbard
The TH-30 is cathode biased - you don't need to bias it at all.


this guy is a boss.
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