Cut Phone Line Detector


At present we can see most of people try to tap telephone line.So this is the circuit to avoid that matter.If some one disconnect the line The unit which attach to the LOAD will operate






Parts:-

Q1 2N3904 Transistor or 2N2222

Q2 2N3906 Transistor

C1 0.47uF 250V Mylar Capicitor

Q3 IRF510 Power MOSFET

D1 1N914 Diode

R1, R2, R3 22 Meg 1/4 W Resistor

R4 2.2 Meg 1/4 W Resistor

MISC Wire, Phone Connectors, Circiut Board

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