Jamming well , no more alarms bells ringing and saturated green <| sep |> That circuit shows a dual supply powering the Opp amps , but it doesn ' t show where center ground of the PS is connected . So as it stands , it can ' t work . Plus those DC 11 V supplies are completely wrong . I think what was intended is that the DC 11 V is actually an earth point . I ' ve redrawn it for you . Plus the circuit should show the output connections as journeymanpedant said and convention says that OpAmps should be drawn with their ve supply at the top and ve at the bottom . You have tipped them upsidedown . <| sep |> Yep go for it . The first time you do it , you may not get excellent yields you may waste a small percentage of pure dxm product , but keep perfecting your process and you ' ll get nearperfect yields . See how the taste works for you . Pretty much everyone finds it intolerable , but I can handle it fine . Trial and error . Cheers