Introduction: The frequency modulation transmitter operates on low power and the sound is transmitted using FM signals. The FM transmitters take an audio signal from an established source and convert it into an analog signal … Read more
2n3904
What is a High Range FM Transmitter? An FM Transmitter is an electronic device that can air audio signals from a source on a selected range of frequencies. They are generally used to broadcast stationary … Read more
High Range FM Transmitter Circuit using 2N3904 Transistors
The audio level meter is a circuit that detects and measure the level of audio/sound in the surrounding. These sound circuit converts sound energy from the surrounding into electrical energy to light LEDs accordingly. A … Read more
Audio Level Meter Using 2n3904 Transistors – DIY Projects
Here is a simple and interesting project of an Automatic municipal water supply sensor switch circuit. The purpose of this circuit is to sense or detect when the water comes into the municipal water supply … Read more
Automatic Municipal Water Supply Sensor Switch
If you are a student who has to make electronic projects, or someone who has to make them on a daily basis or repair electronic circuits then the most important tool on your bench is … Read more
Simple Continuity Tester With Buzzer
Today we have come up with a smart circuit, that is Night Activated PIR Motion Sensor. Therefore, it initiates its operation whenever the circuit experiences any movement in its range. Generally, this night-activated PIR motion … Read more
Night Activated PIR Motion Sensor Lamp
Awakening each day early in the morning is a challenge for some. Therefore, utilizing a Smart morning timer or alarm can enable us to rise—and sparkle somewhat more uncomplicated and more accessible. Meanwhile, smart morning … Read more
Smart Morning Alarm Project
“FM transmitter circuit projects” are undoubtedly very well known among electronics specialists/students. Be that as it may, the baffling part is most transmitters will not work well, and besides the web is loaded with “crappy … Read more
Stable FM Transmitter Project with 2N3904
If you are looking for an easy and fun electronics project then this is it. In this tutorial, we are going to make a simple transistor code lock circuit. This circuit is inexpensive, simple, and … Read more
Simple One Transistor Code Lock
This is a “battery-powered Transistor FM Tracking Transmitter” that communicates a rehashing radio signal which can be recognized by a “directional antenna”. The transmitter communicates an isotropic (emanates in all directions) signal on the FM … Read more
Transistor-based FM Tracking Transmitter
An ON Delay Timer Circuit is a simple electronic circuit, which often serves to initiate time delays in different switching applications. This delay of a few minutes or seconds at times becomes the deciding factor … Read more
On Delay Timer Circuit using Three 2N3904 NPN Transistors
The motor plays an important role in many engineering applications. People always search for an efficient and easy way to control these motors. There are many techniques available in both AC and DC to control … Read more
Simple Sound Controlled DC Motor using CA3140 IC
Siren is a continuous tone that varies in frequency. Usually, the output of the siren circuit is very low which is hard to hear. Therefore, it is needed to build a circuit that can amplify … Read more
Simple Siren Enhancer Circuit 10Watt Using IRF9540
With the rising number of mosquito-borne illnesses like malaria or dengue, control of mosquitoes is something of utmost importance in the present day. Therefore, special products are required like mosquito repellent to combat mosquitoes. This … Read more
Mosquito Repellent Circuit Using Two Transistors
A simple electronic toy piano can be easily constructed using transistors and a few discrete components. The circuit consists of two parts. The first part is of transistors that are wired to form an Astable multivibrator. … Read more
Electronic Organ Circuit Using Transistors
Ever wondered how come you can just simply tune in to your favorite FM Radio Channel? Moreover, ever had the curiosity of making your own FM Station on a specific frequency? Well if the answer … Read more