The basic circuit illuminates up to ten LEDs in sequence, ... driving a strip obtained from 2 to 5 series-connected LEDs. Therefore one transistor and its Base resistor are required to drive each of ...

This is the first basic LED circuit I built many years ago in my school days and had given me immense pleasure to see glowing LED. For building this circuit you only need four things: LED- 1; Resistor ...

The LED connects across the output transistor because this approach lets the inductive kickback voltage add to the battery-supply voltage and makes the LED brighter. This circuit operates well from ...

In today's project, I am going to make a flip-flop circuit by using the most popular NPN transistor BC547 A Flip-Flop LED flashing circuit is a fundamental circuit that delivers a continuous square ...

Learn how to use LED circuits in your STEM projects with these four creative ideas. Make LED greeting cards, wearables, sensors, or games with simple materials and tools.

A transistor tester can be a handy addition to your electronics workbench.This versatile transistor tester design, first presented a decade ago, enables you to quickly assess the functionality of ...