Tram TR-79 Power Supply for use with TR-50 microphones wired with a 5 pin TA5F, Female connector. Positive Bias. 
  Compatible with TR-50 wired for Lectrosonics transmitters using a TA5 connector include: M185, M187, M190, M195, M200, UM195B, UM200B. It does not matter whether the TR-50 is wired for the old Lectrosonics mic wiring or the newer Servo Bias wiring. The TR-79 is the same.