google "AKG c451e schematic" one of the first links has a schematic with some voltages marked.
Left side is a source follower into an emitter follower to the output transformer
Right side is the regulated 10VDC supply and DC to DC converter for the capsule voltage
Power the circuit up from a phantom supply and check you voltages. Nice simple circuit should be an easy fix.
Left side is a source follower into an emitter follower to the output transformer
Right side is the regulated 10VDC supply and DC to DC converter for the capsule voltage
Power the circuit up from a phantom supply and check you voltages. Nice simple circuit should be an easy fix.