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Simple Led Flasher using Bc 547 Transistor How To Make// Led Blinking Circuit How To Make// Bc 547 - YouTube
Circuit Diagram - Easy project : 28 LED flasher circuit using single driver transistor BC547 some experiments can be dangerous for that you don't risk and hurt your self be safe. | Facebook
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Amazing Idea With BC547 Transistor, Diode And LED | 12v Battery Full Indicator - YouTube | Led diodes, Transistors, Diode
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