Hi Folks, I am new here and Pretty new to the DYI Audio electronix scene but I am very eager to learn and I learn very quickly.....
I rescently aquired a bunch of Burr Brown Op-amps which i want to use to build a Microphone Pre-amp with 48v Phantom power.....
I do not want to make anything too complex as this will only be my second DYI Project so I am looking for a Pre-amp design that just has an On/Off switch and a Gain/Volume knob and a Phantom power switch and maybe a Clipping led but it isn"t nescessary... I will be Running Microphones with an Impedance of 600 ohms to 2.2 KOhms so I would like it to be able to handle these Input impedances (Maybe a High-Z input and a Low-Z Input??) ...
The Op-Amps that I have are the "OPA134, OPA137 and the OPA2107" all in the 8 Pin Dip configuration.....
I have a Lot of Electronix Parts Like Caps,Diodes,Transistors,Resistors ect, so I should have most of the Parts needed as Long as it uses the Op-amps that I have.....
I have been looking for a really long time for a Suitable project (about a Month) but I haven"t been able to find one yet as most of them were either To complex or not detailed enough (no parts list) or didn"t use the Op-amps that I have ......
So my question to you Kind Folks is could someone please Point me to a Good detailed Schematic for a Mic Pre-amp that uses the Op-amps I have and has the Basic Features that I need??
ThanX a Lot!!!
