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Simple Transistor Relay Driver Circuit

Last updated on 29 April 2026 by Admin-Lavi Leave a Comment

Small switch we call transistor is inside almost all electronic thing, but transistor cannot handle big power by itself. So we have used Simple Transistor Relay Driver Circuit which is like a special adapter for transistor and this help small signal from transistor to control big relay switch. Also, with this we can turn ON […]

Filed Under: Mini Projects, Transistor Circuits, Tutorials

LED Chaser Circuit using IC 4017

Last updated on 29 April 2026 by Admin-Lavi Leave a Comment

This LED Chaser Circuit using IC 4017 project make LED lights turn ON one by one like chasing, also it is fun way to learn electronics. In addition, one chip of IC 555 makes pulse again and again and that pulse connects to other chip IC 4017 and it turn ON and OFF each pin […]

Filed Under: 555 Timer Projects, DIY Projects, Hobby Circuits, LED and Lamps

Simple Temperature Indicator Circuit using a Single Transistor

Last updated on 29 April 2026 by Admin-Lavi Leave a Comment

To make a Simple Temperature Indicator Circuit using a Single Transistor is not so hard like people think. Furthermore, this article makes understand, how anyone can build this easy circuit using one diode, one transistor and some other small parts. What is a Temperature Indicator Circuit using a Single Transistor: Firstly, using one transistor, temperature […]

Filed Under: DIY Projects, Heater and Temperature Controllers, Indicator Circuits, Mini Projects, Sensors and Detectors, Transistor Circuits

Simple Current Limiter Circuit using Transistors

Last updated on 28 April 2026 by Admin-Lavi Leave a Comment

To begin with, this Simple Current Limiter Circuit using Transistors gives tutorial to show how to make a circuit that stop giving too much power to other electronics. Also, it helps to protect from overload by using two transistors and one special resistor. What is a Current Limiter Circuit using Transistors: A transistor current limiter […]

Filed Under: DIY Projects, Mini Projects, Power Supply Circuits, Security and Protection, Transistor Circuits

Simple Voltage Regulator Circuit using Transistor and Zener

Last updated on 28 April 2026 by Admin-Lavi Leave a Comment

This Simple Voltage Regulator Circuit using Transistor and Zener work like bodyguard for electricity, because it uses one transistor like door keeper and one special Zener diode to keep voltage not going up-down. Furthermore, the Zener diode gives fixed voltage and transistor follow that voltage to keep same for our device. Also, this project is […]

Filed Under: DIY Projects, Mini Projects, Power Supply Circuits, Transistor Circuits

Alternate Red Green LED Flasher Circuit

Last updated on 28 April 2026 by Admin-Lavi 3 Comments

This post show how to make a Alternate Red Green LED Flasher Circuit using red and green LED, it is fun and easy circuit, that is a reason so many people like this project. Also, this circuit uses two BC547 transistor and they help red and green LED blink one by one. What is a […]

Filed Under: DIY Projects, LED and Lamps, Transistor Circuits

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