12v LED Strobe Light LED Flasher

LED flasher

Hey there, DIY enthusiasts and electronics lovers! Today, I want to share an awesome project with you that will add a touch of brilliance to your creations. We’ll be building a 12V LED flasher using two popular transistors: the BD139 and the BC547. This project is not only fun but also educational, allowing you to delve into the world of transistors and circuit design. So, let’s get started!

what you’ll need for this LED Flasher

  1. BD139 NPN transistor
  2. BC547 NPN transistor
  3. 4 LEDs (color of your choice)
  4. Resistors:
    • 220Ω resistor
  5. Capacitor:
    • 470μF capacitor
  6. Potentiometer:
    • 100k
  7. Power supply:
    • 12V DC power source
  8. PCB
  9. Jumper wires

Circiuit Diagram

PCB Making PDF File

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