this is for peltor comtac III's and TCI TABCIII radio ptt headsets. the mic ohms out at 150.
i have made this circuit
Dynamic to electret mic
i get horrible motorboating noise (digital only, analog fine)
at first i thought it could be the cheap kenwood k1 cable i harvested off a baofeng ptt
even just with ptt connected, no headset/mic it still does it. only thing it can be now is the pre amp im using to make the mic work, any suggestions or better circuits to try?
i have made this circuit
Dynamic to electret mic
i get horrible motorboating noise (digital only, analog fine)
at first i thought it could be the cheap kenwood k1 cable i harvested off a baofeng ptt
even just with ptt connected, no headset/mic it still does it. only thing it can be now is the pre amp im using to make the mic work, any suggestions or better circuits to try?