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Is the Wire Broken? Try This Simple LED Tester! ⚡ 🔧 OPEN / CLOSED CIRCUIT TESTER | SIMPLE DIY ELECTRONICS ⚡ In this video, I show you how to make a simple electrical continuity tester to check whether a wire or circuit is broken or connected. This DIY project is easy, simple, and beginner-friendly, perfect for home use or basic electronics troubleshooting. The circuit uses an LM324N IC as a signal amplifier and an LED as a visual indicator. Powered by a 3.7V battery, it is safe, portable, and l
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