Hello, i am not too deep into electronics.. enough to do repairs.. but far from beeing able to do circuit design. I ve a question about the discrete build Allen&Heath S02 Op-Amp. Does the voltages in the picture suggest that this opamp is biased into class a operation?
And has anybody some other info about this opamp? Or what do you think about the design?
I just got one old Syncon A console and are about renovating it. Many functions are down and maybe i run into broken S02 opamps.
Of cause i like to restore original condition but i also need to go into production soon..
The transistor types used on this op amp boards are not so easy top get.. How critical would it be to just use some complementary types? Is it likely that Allen&Heath used selected transitors in the outputstage or will the circuit take care of slight missmatchings?
Sorry for the stupid sounding questions..but..living is learning ;-)
And has anybody some other info about this opamp? Or what do you think about the design?
I just got one old Syncon A console and are about renovating it. Many functions are down and maybe i run into broken S02 opamps.
Of cause i like to restore original condition but i also need to go into production soon..
The transistor types used on this op amp boards are not so easy top get.. How critical would it be to just use some complementary types? Is it likely that Allen&Heath used selected transitors in the outputstage or will the circuit take care of slight missmatchings?
Sorry for the stupid sounding questions..but..living is learning ;-)