The Tram TR-79+ supplies power to lavalier microphones featuring a TA5-F connection and positive bias wiring (such as a TR-50). The power supply is capable of power via a 1.5v (LR44) battery or external phantom power source (remove battery when using external phantom power). The output features a standard XLR-male connection.

Note:For use with Tram TR-50 microphones with positive bias wiring configuration only. Not for use with negative bias microphones.