ampage
Tube Amps / Music Electronics
For current discussions, please visit Music Electronics Forum. The sunn still shines online!

ampage archive

Vintage threads from the first ten years

Search for:  Mode:  
previous: marleyman BTW, the amp is mine and was wantin... -- 5/25/2000 6:30 PM view thread

Re: ray, here's a post about this amp fromawhile back

5/25/2000 10:21 PM
ethRe: ray, here's a post about this amp fromawhile back
Yo! That amp may have a bias servo in it. The bias will always be set and balanced. I'm not positive of this particular amp, but I know Crate has done that on some of theres. If you are swapping in the same type of tube(el84), I wouldn't worry about changing bias until it sounds like crap. If you wanted to trace for a bias servo: look for a current sense and an integrator circuit(op-amp?). _Eth