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Home » 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 40 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 4 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 Projects, Radio Circuits, Transmitter Circuits

Make this Crystal Radio Set Circuit using No Batteries

Last Updated on March 19, 2021 by Swagatam 12 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 Projects, Radio Circuits

Simple FM Radio Circuit Using a Single Transistor

Last Updated on February 23, 2020 by Swagatam 186 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 Projects, Mini Projects, Radio Circuits, Simple Circuits, Transmitter Circuits

Simplest AM Radio Circuit

Last Updated on July 15, 2021 by Swagatam 113 Comments

The following circuit was taken from an old electronic book, it is indeed a very nice little two transistor radio receiver circuit which utilizes very few components yet is able […]

Filed Under: Audio Projects, Mini Projects, Radio Circuits



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