Other Parts Discussed in Thread: OPA2134, RC4558, NE5532, OPA1678, OPA1652, OPA1688, OPA1642
I need to replace the operational opamps in my amplifier due to transistor failure, and --54v went through -17v rails.
DC Servo circuit is below its a new class at Technics SU-V9 from the 1980s. The old part was AN6552 which is gone and modern replacement is RC4558 (voltage is 15+/-). But maybe the OPA2134 or OPA2132 or a better suited Opamp for the circuit would be best