Hello, i am looking for a PCB that will allow me to use dynamic microphone from peltor (peltor mt73/1) with baofeng style radio that is suited for electret microphone. It would be nice if the PCB size be 10x10mm or somethin simillar with spots to solder wires. Impedance of the peltor mic is 150 ohm. It would be used in standalone PTT not directly in radio. I have found this scheme on some forum but don't know if its 100% correct and how it would be connected to radio