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Mini Condenser Microphone Amplifier Circuit

Last updated on 20 December 2025 by Admin-Lavi Leave a Comment

This Mini Condenser Microphone Amplifier Circuit is low cost project. It helps condenser mic give clear output by making weak mic sound more strong. It improves voice signal from condenser mic and gives circuit a good audio gain. The circuit works with small 9V battery supply and no IC is needed in this design. Anyone […]

Filed Under: Audio Circuits

50Hz Square Wave Generator Circuit using Transistors

Last updated on 20 December 2025 by Admin-Lavi Leave a Comment

This article is for 50Hz Square Wave Generator Circuit using Transistors. Two transistors switch ON and OFF one by one. Outputs blink opposite time. No IC is used only simple parts are required. We can change resistor or capacitor to change speed. This circuit is good to learn basic oscillator working. Circuit Working: Parts List: […]

Filed Under: Oscillator Circuits, Transistor Circuits

Transistor Based LED Alternator Blinker Circuit

Last updated on 20 December 2025 by Admin-Lavi Leave a Comment

This circuit is for simple Transistor Based LED Alternator Blinker Circuit. Two LEDs blink one after another as this circuit uses two NPN transistors. This circuit is an astable multivibrator, which is also called an oscillator circuit. This project is good for beginners an it is used for learning transistor switching. It can be used […]

Filed Under: LED and Lamps, Transistor Circuits

12V Mini Inverter Circuit using Transistor TIP41

Last updated on 18 December 2025 by Admin-Lavi Leave a Comment

This 12V Mini Inverter Circuit using Transistor TIP41 is a simple micro inverter. It converts 12V DC battery power into AC power where the AC output is with low power. It is useful for learning and for small experiments and it can light small AC load like night bulb. This circuit uses two TIP41 transistors […]

Filed Under: Inverter Circuits, Transistor Circuits

DIY Inverter Circuit using Transistors

Last updated on 18 December 2025 by Admin-Lavi Leave a Comment

In this tutorial we will learn about easy inverter circuits. Anyone can understand and build it. Only few parts are needed with no IC and no complex design. Just two power transistors and a transformer. It converts 12V battery power into AC supply which is good for beginners and DIY lovers. Best for learning how […]

Filed Under: Inverter Circuits, Transistor Circuits

Simple 9V Transistor Inverter Circuit

Last updated on 18 December 2025 by Admin-Lavi Leave a Comment

This is Simple 9V Transistor Inverter Circuit using 9V battery. The circuit is very small and easy to make which helps to understand DC to AC working. Only few low cost parts are used and its output power is very low. It is only for testing and learning. This circuit is useful for students and […]

Filed Under: Inverter Circuits, Transistor Circuits

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