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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

Simple Single Transistor LED Flasher Circuit

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

To begin with, this Simple Single Transistor LED Flasher Circuit show smallest LED flasher circuit ever made, here the LED blink ON and OFF again and again by using only one transistor, one resistor and one capacitor. Now, just think of only one transistor and some easy parts and LED will start flashing, look nice! […]

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

Inverter Circuit using Two 2N3055 Transistors

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

In this post we show how to make an easy and simple Inverter Circuit using Two 2N3055 Transistors, which works with 12V battery and gives around 100 watt 220V AC power. Also this circuit is good for using with small home devices. Circuit Working: Parts List: Components Values Quantity Resistors 100Ω 10W Wire Wound 2 […]

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

Small Amplifier Circuit using Transistors

Last updated on 27 April 2026 by Admin-Lavi Leave a Comment

This is one Small Amplifier Circuit using Transistors which work like basic audio amplifier and it makes weak sound signal more strong so sound come better like in car radios. So, now lets see how this circuit is build and how it work. Circuit Working: Parts List: Components Values Quantity Resistors 100k, 1k 1/4W CFR […]

Filed Under: Amplifier Circuits, Transistor Circuits

220V SMPS Circuit using One Transistor

Last updated on 21 April 2026 by Admin-Lavi Leave a Comment

To begin with, this article shows how to make 220V SMPS circuit using one transistor, as the circuit connects to 220V wall socket and it uses only one transistor MJE13005. Also, it does not need a special IC or many extra parts, instead, it uses a special diode and a transformer coil, so it controls […]

Filed Under: High Voltage, Power Supply Circuits, Transistor Circuits

Electronic Organ Circuit using Transistors

Last updated on 19 April 2026 by Admin-Lavi Leave a Comment

This post talk about how to make small and easy Electronic Organ Circuit using Transistors. First, it make sound like real organ, so sound is nice and fun, then we have used transistor and transistor help make sound and give power to speaker. Also, this circuit is small, but it plays good music and is […]

Filed Under: Audio Circuits, DIY Projects, Transistor Circuits

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