Hello everyone!
I would like to design a circuit for a condenser microphone, but I have more experience with electronics for guitar pedals, so I'm afraid of approaching it wrong or not considering important aspects in the design of condenser mic circuits...I was thinking of developing it this way:Capsule (polarized via phantom power) connected to a JFET in a buffer configuration (to take advantage of its high input impedance and low noise characteristics but without the bias and polarization issues of FETs, which are less critical in a buffer stage) and then enter a MOSFET amplification stage (whose characteristics are much more repeatable). Exiting the MOSFET circuit, enter a step-down transformer and then to the XLR connector.I have studied various schematics but have never found MOSFETs on this type of board, so I'm afraid it might not be suitable... Could anyone give me some guidance?Sorry if my English is not very good...
Thanks to everyone
I would like to design a circuit for a condenser microphone, but I have more experience with electronics for guitar pedals, so I'm afraid of approaching it wrong or not considering important aspects in the design of condenser mic circuits...I was thinking of developing it this way:Capsule (polarized via phantom power) connected to a JFET in a buffer configuration (to take advantage of its high input impedance and low noise characteristics but without the bias and polarization issues of FETs, which are less critical in a buffer stage) and then enter a MOSFET amplification stage (whose characteristics are much more repeatable). Exiting the MOSFET circuit, enter a step-down transformer and then to the XLR connector.I have studied various schematics but have never found MOSFETs on this type of board, so I'm afraid it might not be suitable... Could anyone give me some guidance?Sorry if my English is not very good...
Thanks to everyone