In this video, you will learn how to make a cell phone signal jammer using 555 timer with less number of components. This circuit is very efficient to jam the signal of all signal bands of mobile communication.

Caution: This video is intended for educational purposes only. It is illegal to use in some areas.

JLCPCB Prototype for $2(Any Color): https://jlcpcb.com

You can download circuit and pcb files here :

How to Make Cell Phone Signal Jammer

Parts Details :
# NE555 Timer
# BF495 Transistor
# 2PF Ceramic Capacitor
# 4.7PF Ceramic Capacitor
# 3.3PF Ceramic Capacitor
# 47PF Ceramic Capacitor
# 30PF Variable / Trimmer Capacitor
# 1uF 63V Electrolytic Capacitor
# 10K Resistor
# 6.8K Resistor
# 82K Resistor
# 220E Resistor
# 5.6K Resistor
# 24 AWG Copper Wire
# 3 Pin Mini Slide Switch (SPDT)
# 3mm LED (Green)
# 2Pin Male Header Connector
# 9V Battery Connector
# 9V Battery

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How To Make a Cell Phone Jammer
Cell Phone JAMMER | Disable Phones Instantly!
Cell Phone Jammer
Simple GSM cell phone jammer with circuit diagram
Mobile Signal Jammer
Mobile Signal Blocker

, https://i.ytimg.com/vi/tfrXrnCJMPU/hqdefault.jpg

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35 Comments

  1. for all you targeted individuals out there-———i think cell phone jammer is way to go—–dont quit till you own one–i have gps jammer for car coming in mail—–keep good notes know what frequencies you are covering————–THIS IS THE WAY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  2. Yes 5 inches…100cm range??? Guess you can block your date's boyfriend or girlfriend from calling during dinner, lol.

  3. I made the circuit and still not my signals are present it's not working I also tried the variable capacitor also by rotating the screw(nut) but still it's not working please help??.

  4. What's the frequency range? (frequency not range) 3g? 4g? I'd guess that adjustable cap could be swapped to get a certain range, yes?

  5. What is the range of this jammer Transmitter ?

    How far this can jam cell phones
    How many meters?

  6. Guys he just removed the slot when turned on and kept the slot back when switch is pff

  7. I am highly struggling and irritated everyday by a neighbor who is loudly speaking for day and night without break over phone. His age is just 16, I warned him many times and even advised to his parents. But no use. Even they are not care about the health of that boy. I dont want him to step in to the police station at this age., so I need this jammer very much. I can stop him whenever he talk with his class mates unwanted. can you please send it to me?

    **If you are ready to sell it to me, please contact me whatsapp +918903989159 with cost detail.

  8. What’s the range ? Can you add a rf amplifier? Can you make a video of same circuit on a breadboard and can you make long range 5.8MHz Jammer to stop drones from flying over head ?

  9. Professional! But, if so, user should be with sufficient technology ability and source the parts.

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