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Long Range FM Transmitter
Several circuits for constructing FM transmitter have been published in EFY. The power output of most of these circuits were very low because no...
Build A Long Range FM Transmitter
Have you ever wanted to broadcast your own radio station within the neighborhood? Ever get curious on where people get those "Surveillance Bugs" from...
Build an FM Transmitter with Raspberry Pi (No Extra Hardware)
The Raspberry Pi, a versatile single-board computer, can be transformed into a functional FM transmitter without the need for any separate transmitter HAT or...
Build a Tiny FM Radio Inside an Earbud
In the June issue, the construction of a ‘Miniature Watch-Style FM Radio’ delivering stereo FM output was described. Building on that concept, the next...
TV To FM Converter Using Single Transistor
Here is a simple circuit of TV to FM converter. With this simple one-transistor BF494 circuit. you will be able to receive FM and...
Remote Controlled Stereo FM Radio With RDS Using ESP-01
In this article, we will explore a straightforward method to create an IR remote-controlled FM radio with RDS (radio data system) using the ESP-01...
Designing Simple FM Radio Receiver Circuit
Here’s a simple FM receiver with minimum components for local FM reception.
Smallest FM Audio Bug Spy Device
As seen in James Bond movies, audio spy bugging devices are used by intelligence agents in different parts of the world. These devices can...
Make A Crystal-Locked FM Transmitter
The circuit presented here uses a crystal oscillator and frequency multiplier to generate a highly-stable carrier signal frequency of 96MHz. With 40mW of RF...
TFMini Precision Gauge
The idea of buying a TFMini LiDAR was to build a radar but for many days nothing really got kicked off and then one...