Cell phone detector or EMF detector circuit

It is a very simple cellphone detector circuit designed using IC LM 324 op-amp

it can also detect EMF ( Electromagnetic Frequency )


Parts list -

  1. IC lm 324 ( 14pin)
  2. 1k - 3 pcs resistor
  3. 470k resistor
  4. 10k preset
  5. Diode IN4148 - 2 pcs
  6. BC548b transistor
  7. 470pf ceramic capacitor
  8. Veroboard or Breadboard
  9. wire
  10. 9v battery
                                                                  Transistor & IC pins


                                                 Circuit diagram of emf detector
The circuit on vero board



                                                        Project making video

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