Cosmonaut
Well-known member
I'm planning my new sidecar made with trident 65 channels, the main L-R will be done with the ACA boards, but I'm trying to design a board with 8 summing mono devices with balanced outs, for using them as aux summing.
It would be done taken the signals from the aux bus, the bus R is 12k on every bus, and using a circuit similar to the one used in the original, trying to use the same voltage rails (+18/-18), the minim number of electrolytics in the signal path, a modern low noise opamp: AD8512, LME49720... and feeding the outputs from these to a That 1640 for balancing purposes.
My first will be a copy of the trident aux schematic with other opamps, measuring stability HF and offset.
Anything else to take into account?
It would be done taken the signals from the aux bus, the bus R is 12k on every bus, and using a circuit similar to the one used in the original, trying to use the same voltage rails (+18/-18), the minim number of electrolytics in the signal path, a modern low noise opamp: AD8512, LME49720... and feeding the outputs from these to a That 1640 for balancing purposes.
My first will be a copy of the trident aux schematic with other opamps, measuring stability HF and offset.
Anything else to take into account?