I have the privilege to work on some of these neve style channel amplifiers for a friend at 5th street studios here in Austin. See pics at link below
They came out of a "1972 *Custom 80 series SBC Neve console" * Custom means the diy channel amps someone outfitted to the board *
and appear to be someones DIY job. Maybe the previous owner of that console???
the circuit is close to the 1081 but do not use the same pin- out. it is using an Ne5532 opamp to drive the o/p transformer. the one shown has a Beyerdynamic in transformer for the mic section. Most have a Marinar and i have added a few Carnhills sourced from AML to the Line inputs...
I have found a bunch of helpful diagnostic and neve resources at the Ten81 project site and technical audios site. In case you are wondering, most of the problems i am finding are incorrect capacitor values and faulty connections.
https://picasaweb.google.com/103114693802257061723/1081Pics?authuser=0&authkey=Gv1sRgCLP35cn7v9KnzQE&feat=directlink
They came out of a "1972 *Custom 80 series SBC Neve console" * Custom means the diy channel amps someone outfitted to the board *
and appear to be someones DIY job. Maybe the previous owner of that console???
the circuit is close to the 1081 but do not use the same pin- out. it is using an Ne5532 opamp to drive the o/p transformer. the one shown has a Beyerdynamic in transformer for the mic section. Most have a Marinar and i have added a few Carnhills sourced from AML to the Line inputs...
I have found a bunch of helpful diagnostic and neve resources at the Ten81 project site and technical audios site. In case you are wondering, most of the problems i am finding are incorrect capacitor values and faulty connections.
https://picasaweb.google.com/103114693802257061723/1081Pics?authuser=0&authkey=Gv1sRgCLP35cn7v9KnzQE&feat=directlink