#1
Hey guys, I am wanting to switch one of my tubes in my amp for a 12AU7 and my friend says if I do this I need to calibrate my amp or the tube will just fry as soon as I turn it on. Is this true? Or can I go ahead without "Calibrating"
#2
YOu must bias the amp after changing a tube, if you don't have the equipment have some one else do it, your amp will not sound good if you don't do the proper procedure.
#3
it's easy enough to bias yourself at home and there's even tutorial vids online but i think it'd be safer to hand it in to someone.

there's some vids on the eurotubes site.
#4
see. i barely have enough dough for new tube. so getting it biased isn't in the picture. ahah. why do you have to get it biased? And on eurotubes they don't have any amps even close to mine. I have a Crate vintage club 20.
Last edited by maddermaxx at Feb 15, 2007,
#5
Check up somewhere if it's a self bias amp, if it is, then you're in luck.
"Breathe, breathe in the air
Don't be afraid to care"

Fender Strat/Tokai LS80>few pedals>Orange Rocker 30
#6
Quote by R_H_C_P
Check up somewhere if it's a self bias amp, if it is, then you're in luck.



Is there a way I could tell by opening it up? Because I did last night and there doesn't appear to be any knobs/screws. I'm searching on a Vintage amp forum right now and If I don't find I might just ask there.