How to make Cell Phone Signal Jammer

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):

You can download circuit and pcb files here :


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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