Optimised Semiconductor Noise Source Circuit
Overview We have previously released designs utilizing a transistor junction in Zener breakdown mode as a noise source. … Read more
bc547
Dual Channel 12v Relay Driver Board Circuit
Overview In today’s tutorial, we are going to make a “Dual Channel 12 Volt Relay Driver Circuit” using … Read more
Battery Charger for Positive Earth Cars
Introduction If you own a classic car with a positive earth body, then you know the challenges of … Read more
Self-Regulating Battery Charger Circuit
Introduction If you have ever left a lead-acid battery unused for a long time, you may have found … Read more
Simple Solar Plant Watering Alarm Circuit
Introduction Solar energy is a clean and renewable source of power that has many applications in our daily … Read more
Door Security Alarm Circuit using Magnetic Reed Switch
Introduction In the modern era where everything relies on technology, using a simple lock key for security is … Read more
How to make a Joule Thief Circuit
Introduction In electronics, the joule thief circuit is the voltage booster circuit that converts the input voltage into … Read more
Cheap & Small Hearing Aids Circuit
Introduction Hearing is no doubt a great blessing. It’s something that we all should be thankful to our … Read more
4 Transistor Audio Amplifier Circuit
In this tutorial, we are going to make a “4 transistor audio amplifier circuit”. The amplifier is simple … Read more
3-Phase Signal Generator Circuit
Introduction A 3-phase signal generator circuit is a powerful tool for any engineer or technician working in electrical … Read more
Multipurpose FM transmitter Circuit – DIY
Introduction Knowledge matures when practically gets implemented. It allows a person to get a clear sense of many … Read more
Simple Soil Dryness Detector Circuit
In this tutorial, we are going to make a “Simple Soil Dryness Detector Circuit”. Soil is the most … Read more
Non-Contact AC Voltage Detector Circuit
Introduction A non-contact voltage identifier or detector is an electrical analyzer that assists with recognizing voltage. Voltage presence … Read more
Simple PIR Sensor Circuit SL100
Introduction Have you ever thought that how the automatic doors of stores and malls work? How does it … Read more
Simple Colpitts Oscillator Circuit
Introduction To get the definite frequency and amplitude in various electronic circuits, oscillator circuits become part of those … Read more
Simple Single Transistor Audio Amplifier Circuit
Introduction The electronics are nothing without the amplifier circuits. Since amplifiers are one of the basic and important … Read more