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Explained

OCL Amplifier Explained

Last Updated on May 15, 2026 by Swagatam 8 Comments

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In the field of audio amplifiers OCL stands for Output Capacitor-Less Amplifier design. How it Works In this OCL type of amplifier topology or configuration, the power output stage is directly coupled to its preceding driver stage without coupling capacitors. The following figure shows a typical OCL amplifier output stage, as can be seen, the […]

Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Explained, OCL

5 Simple Audio Mixer Circuits Explained

Last Updated on May 28, 2026 by Swagatam 47 Comments

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The explained 5 circuits below are universal simple audio mixer circuits, that may be customized and upgraded to 5 channel or even 10 channel mixers, as desired by the user. Contributed by: Anil Rao. Stereo Audio Mixer The operation stereo audio mixer circuit shown below is straightforward: If a mic is “being used,” its output […]

Filed Under: Audio and Amplifier Projects Tagged With: Audio, Circuits, Explained, Mixer, Simple

Simple Colpitts Oscillator Circuits Explained

Last Updated on September 22, 2026 by Swagatam 27 Comments

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In this post I have explained how LC oscillator circuits functions and we will be constructing one of the popular LC based oscillator – Colpitts oscillator. What are Oscillators Electronic oscillators are used in most of our daily used electronic gadgets ranging from digital clock to high end core i7 processor. Oscillators are heart of […]

Filed Under: Oscillator Circuits Tagged With: Circuits, Colpitts, Explained, Oscillator, Simple

Raspberry Pi Explained

Last Updated on May 14, 2026 by Swagatam 2 Comments

In this article I have explained about Raspberry Pi single board computer, their specifications, how to use them in a project, we are also going to do a small comparison between Arduino and Raspberry Pi, so that we can choose which of them are best for your projects. What is Raspberry Pi? Raspberry Pi is […]

Filed Under: Arduino Projects Tagged With: Explained, Raspberry

6 Simple Class A Amplifier Circuits Explained

Last Updated on May 15, 2026 by Swagatam 37 Comments

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In this post I have explained 6 simple, cheap class A power amplifier circuits which can be used for any small scale audio amplifier application. By: Dhrubajyoti Biswas 1) Zero Negative Feedback Amplifier This following data will detail how to build an amplifier having zero negative feedback which implies building a zero component amplifier. The […]

Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Circuits, Class, Explained, Simple

Force Sensing Resistor Circuit Explained

Last Updated on January 8, 2024 by Swagatam 5 Comments

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In this article we are going to see, what force sensing resistor is, their construction, specification and finally how to interface it with Arduino microcontroller. We will also study a couple of comparator circuits based on 741 and LM311 ICs, for operating a relay using force sensitive resistor. What is Force Sensing Resistor A force […]

Filed Under: Sensors and Detectors Tagged With: Explained, Force, Resistor, Sensing

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