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Crystal Radio Sets with Amplifier Circuit

Last Updated on November 29, 2022 by Swagatam Leave a Comment

A crystal radio receiver, often known as a crystal set, is a simplest form of radio receiver that was widely used in the initial periods of radio. A crystal radio […]

Filed Under: Audio and Amplifier Projects, Radio Circuits

Listen to UHF and SHF (GHz) Bands with this Simple Circuit

Last Updated on May 25, 2020 by Swagatam 3 Comments

This simple two IC circuit can be used for capturing and listening to frequencies in the GHz range. Receivers designed to cover frequencies as high as several gigahertz (which is […]



Filed Under: Mini Projects, Radio Circuits

Make a Walkie Talkie Circuit using FM Radio

Last Updated on February 27, 2020 by Swagatam 41 Comments

In this post we learn how to make a simple homemade walkie talkie circuit using ordinary FM transmitters and FM radios. It’s a perfectly tested design by me. I could […]

Filed Under: Radio Circuits, Transmitter Circuits

Make this Radio Repeater Circuit at Home

Last Updated on October 6, 2019 by Swagatam 5 Comments

The post discusses a simple radio repeater circuit which can be built by any new hobbyist or a radio amateur for communicating over long distances using ordinary transmitters and radio […]

Filed Under: Audio and Amplifier Projects, Radio Circuits, Transmitter Circuits

Make this Crystal Radio Set Circuit using No Batteries

Last Updated on November 30, 2022 by Swagatam 14 Comments

A crystal radio circuit is probably the simplest form of radio that uses hardly any electronic components, and needs absolutely no external power for the operations. Crystal Radio Concept The […]

Filed Under: Audio and Amplifier Projects, Radio Circuits

Simple FM Radio Circuit Using a Single Transistor

Last Updated on January 28, 2023 by Swagatam 194 Comments

When it comes to making an FM receiver it’s always thought to be a complex design, however the one transistor simple FM receiver circuit explained here simply shows that it […]

Filed Under: Audio and Amplifier Projects, Mini Projects, Radio Circuits, Simple Circuits, Transmitter Circuits

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