RuudNL
Well-known member
In the updated schematic, the gain of the first OpAmp stage can be extremely high, with a feedback resistor of 1 M.ohm. (Depending on the drain impedance of the FET.)
The termination of the microphone capsule is low, with a resistor of 1 M.ohm.
I would think about a value of for example 100 M.ohm.
The termination of the microphone capsule is low, with a resistor of 1 M.ohm.
I would think about a value of for example 100 M.ohm.
