Shotgun mic T power supply circuit

[madl74]

  Fully balanced mic power circuit for MKH T type mics
    using two PP3 batts in series
  Bass cutoff -3dB point 14 Hz approx with actual preamp imp of 1 KOhm


       PP3 batts +18v --- 470 Ohm ----\=09=09
                          low noise    \
                                        \=09=09=09=09
                                          \
     mic 2 pos phase ---------------------- + 47 =C2=B5F - ---------Preamp =
2
  X                                           tant        \              X
  L                                                    1.0 KOhm          L
  R                                                       /              R
     mic 3 neg antiphase ------------------ - 47 =C2=B5F + ---------Preamp =
3
                                         /    tant
                                        /
                                       /
       PP3 batts -18v --- 470 Ohm ----/                                  O
  I                       low noise                                      U
  N                                                                      T
     mic 1 Gnd -------------------SCREEN-----------------------Preamp 1


David Brinicombe