How to Make Ultra Sensitive C1815 LED Indicator Circuit #DIYHowToMake #ElectronicsDIY #SensorCircuit #LEDActivation #c1815transistor | Rafooz Bhat

How to Make a Powerful C1815 Coil-Sensor LED Trigger Circuit Description This project explains how you can use two C1815 transistors and a simple coil to create a highly sensitive LED trigger circuit. The coil works as a tiny induction sensor—when it detects a magnetic disturbance or vibration, it produces a small signal. This weak signal is then amplified by the dual-stage C1815 transistor arrangement, allowing the LED to turn ON instantly. This type of circuit is excellent for DIY electronics