Cut Phone line Detector

Parts List
R1,R2,R3 = 22M, Resistor
      R4 = 2.2M, Resistor
      C1 = 0.1uF to 0.47uF, 250V, Mylar, Capacitor
      D1 = 1N914, NTE519, or other small signal diode (1N4148)
      Q1 = 2N3904, NTE123AP, Transistor
      Q2 = 2N3906, NTE159, Transistor
      Q3 = IRF510, NTE2382, Power MosFet