Overview We have previously released designs utilizing a transistor junction in Zener breakdown mode as a noise source. Those familiar with reverse-biased transistors are aware that the noise voltage amplitude produced this way is highly … Read more
BC547 Circuits
Overview In today’s tutorial, we are going to make a “Dual Channel 12 Volt Relay Driver Circuit” using BC547 Transistors. A simple and user-friendly method for interfacing two relays for switching applications in your project … Read more
Dual Channel 12v Relay Driver Board Circuit
In this tutorial, we are going to make a “4 transistor audio amplifier circuit”. The amplifier is simple to construct and is adaptable to your individual requirements. This transistor audio amplifier circuit might be ideal … Read more
4 Transistor Audio Amplifier Circuit
Introduction A 3-phase signal generator circuit is a powerful tool for any engineer or technician working in electrical and electronic systems. This circuit can produce a precise and stable three-phase signal, which can be used … Read more
3-Phase Signal Generator Circuit
Introduction Knowledge matures when practically gets implemented. It allows a person to get a clear sense of many things. So, to understand the process of frequency modulation we are here with the interesting project of … Read more
Multipurpose FM transmitter Circuit – DIY
In this tutorial, we are going to make a “Simple Soil Dryness Detector Circuit”. Soil is the most important natural gift after water and sunlight that this planet has provided us, without which the persistence … Read more
Simple Soil Dryness Detector Circuit
Introduction A non-contact voltage identifier or detector is an electrical analyzer that assists with recognizing voltage. Voltage presence is helpful data to have while troubleshooting requires. Thus, in this tutorial, we have decided to make … Read more
Non-Contact AC Voltage Detector Circuit
Introduction Have you ever thought that how the automatic doors of stores and malls work? How does it get open when there is a person? And have you ever visited countries where street lights get … Read more
Simple PIR Sensor Circuit SL100
Introduction To get the definite frequency and amplitude in various electronic circuits, oscillator circuits become part of those circuits. Thus it plays a crucial role in different microcontroller applications. These oscillators are classified into many … Read more
Simple Colpitts Oscillator Circuit
Introduction The electronics are nothing without the amplifier circuits. Since amplifiers are one of the basic and important circuits, therefore, we try our best to come up with different types of amplifiers. Sometimes with easy … Read more
Simple Single Transistor Audio Amplifier Circuit
Introduction Sometimes it happens that after making any device or circuit it would not work properly. So, the first thing a person can do is to check the wire’s connectivity. The students of electronics mostly … Read more
Simple Broken Wire Detector
Introduction Sometimes you may have observed that your heavy electronic devices suddenly stop working. There could be so many reasons for the device not working properly. One of the major reasons is the internal short … Read more
Short Circuit Protection Circuit
In this tutorial, we are going to make a “Heat Sensor Circuit”. Nowadays it is essential to install heat sensor circuits in industries, shopping malls, and residential areas to prevent anything from fire accidents and … Read more
Heat Sensor Circuit using Thermistor
Introduction Field strength meters are basically the circuits that detect the radiofrequency field. In other words, their basic purpose is to check whether there is any radio frequency signal or not. Hence, you can say … Read more
Field Strength Meter Circuit
Introduction To sense the movement and position of an object in a system, a sensor known as the hall effect is used. The Hall Effect Sensor is a solid-state device that becomes active when exposed to … Read more
Multipurpose Hall Effect Sensor Circuit DRV5013
In this tutorial, we are going to make a “Simple Broken Wire Detector”. When a wire is shorted out or is broken inside a wall or over the insulator and you need to locate it then … Read more