Gunn Oscillators are solid state microwave energy  generators.It consists of the following :

 1. Gunn Diode & Gunn Diode mount :

 It consists of waveguide cavity flanged on one end, and micrometer driven plunger on the other end.Gunn Diode is mounted  in the cavity with BNC(F) connector for DC bias .

  D.C. Bias                :  Calibration Certificate giving frequency vs. micrometer reading is
                                     given.
  Frequency  Range   :  8.4 GHz to 11.6 GHz, Typically
  Typical O/P Power :  5 mWatt.

 2.GunnDiodePowerSupply(SolidState, Digital,Sine,Square,
         Triangle Modulation):
 The power supply meant to be used for Gunn Oscillatror
  Type of circuit   :  Solid State, regulated,  short circuit proof.
  Gunn Bias voltage   :  0 to 10V.
  Gunn Current   :  0 to 750 mA.
  Regulation    :  0.1%
  Modulation Frequency  :  900 to 1100 khz
  Modulation wave form  :  sine, square  & triangle.
  Modulation Depth   :  Adjustable.
  Display    :  3  1/2 digit LED Display.
  Turn-on characteristics  :  Soft turn - on for diode protection
  Input     :  230 +10%, AC.

Besides these ,waveguide stands,assorted cables and manual etc. is provided.