EJ.0003 - Transistor Led Blinker Lego Brick
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Simple two led blinker based on teo NPN transistor, made to learn how transistor, leds, resistors, capacitors work toget
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Updated at source:
Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Attribution — Noncommercial
Project Description:
This project is a great classic to understand how 4 of the most common components used in electronics work: the resistor, the LED diode, the transistor and the capacitor.
Components:
9V Battery
470Ω resistors
2x 10kΩ trimmer
2x 100uF electrolitic capacitors
1 x red led
1 x blue led
2 x NPN transistors (BC547)
2 x 1.8kΩ resistors
buzzer (optional)
on/off switch
Goal:
This project is a great classic to understand how 4 of the most common components used in electronics work: the resistor, the LED diode, the transistor and the capacitor.
There are countless examples in books and on the web, each with some slight modification, basically all the same, but never explained well to the end, or at least leaving the actual operation to the imagination and intuition.
This kit together with the detailed explanations in my blog are intended to make learning fun with simple and practical explanations.
📖 You can find all the instructions and explenation about how it works here:
https://www.electronicjourney.blog/post/ej-003-lampeggiatore-a-transistor
📺 And youtube video :
N.B. : This video shows the construction of the instructional kit and not the one proposed in the 3d files, but they are the exact same circuit, with the optional addition of a buzzer and compacted to create a pin...which looks like a pluncake