How to Make a Simple Mobile Phone Signal Detector | DIY Wireless Detector Circuit

Discover how to build a simple mobile phone signal detector using basic electronic components. This DIY wireless circuit can sense GSM, 2G, 3G, and 4G signals from nearby phones when they make or receive calls or send messages. Ideal for hobbyists, students, and anyone interested in wireless electronics or RF signal detection. Watch the full tutorial, circuit diagram, and working explanation.

🔧 Components Used:

Transistors 2SC8050
LED
Resistors
Capacitor
Antenna
Coil

📡 This circuit is great for detecting nearby mobile signal activity and is fun to build for electronics learners!

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