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The Perfect FM Radio Circuit using TDA7000 IC

Last Updated on May 16, 2026 by Swagatam 7 Comments

Here we are going to see how we can build a very simple, yet perfect FM radio circuit using one single IC called TDA7000. This IC already has everything inside it, so we do not need to do too much headache wiring around it. First of all, before we build, we must understand what each […]

Filed Under: Audio and Amplifier Projects Tagged With: FM, Perfect, Radio, TDA7000

FM Signal Booster Circuit with Adjustable Gain

Last Updated on May 15, 2026 by Swagatam 14 Comments

V shape antenna

Did you’ve ever had trouble catching or establishing connection with distant FM radio stations which were broadcasting programmes you wanted to listen to? Perhaps you’re aware there are a lot more faraway channels, further than the range of your FM receiver. Of course, you could purchase or construct a stronger FM tuner but, building a tunable FM […]

Filed Under: Audio and Amplifier Projects Tagged With: Adjustable, Booster, FM, Gain, Signal

Make a Walkie Talkie Circuit using FM Radio

Last Updated on February 27, 2020 by Swagatam 61 Comments

walkietalkie

In this post I have explained 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 talk with my nephew who stays on first floor through a pair of these transmitters with crystal clear transmission. Overview In one of my […]

Filed Under: Wireless Circuits Tagged With: FM, Radio, Talkie, Walkie

10 Simple FM Transmitter Circuit Diagrams Explained

Last Updated on September 12, 2026 by Swagatam 132 Comments

two transistor FM transmitter

An FM transmitter circuit is a high frequency wireless device which is able to transmit voice signals into atmosphere so that it can be received by a corresponding FM receiver circuit for reproducing the voice signals in a loudspeaker. Here we’ll discuss how to build small FM transmitter circuits using 10 different methods, one that […]

Filed Under: Wireless Circuits Tagged With: Diagrams, Explained, FM, Simple, Transmitter

DTMF based FM Remote Control Circuit

Last Updated on July 3, 2019 by Swagatam 8 Comments

dtmf FM transmitter circuit

In this post I have explained a DTM based FM remote control circuit which can be used for controlling 4 individual appliances remotely by pressing four corresponding buttons on the DTMF transmitter handset. The idea was requested by Mr. Sunaabh Sarkar. Technical Specifications I came across your blog “Homemade The Designs Just for You” quite […]

Filed Under: Remote Control Circuits Tagged With: Based, Control, DTMF, FM, Remote

Simple FM Radio Circuit Using a Single Transistor

Last Updated on September 21, 2026 by Swagatam 228 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 isn’t the case after all. Here a single transistor acts as a receiver, demodulator, amplifier to constitute a wonderful tiny FM radio. It’s basically based […]

Filed Under: Audio and Amplifier Projects Tagged With: FM, Radio, Simple, Single, Transistor

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