In this post I have explained 9 simple metal detector circuits using LC tuned concept, magnetic absorption concept, and the beat frequency oscillator (BFO) concept. The BFO technique is considered to be the most accurate and reliable methods of detecting metals. 1) Metal Detector Circuit Using a Single UJT The first metal detector circuit shown […]
Newly Updated Circuit Projects:
How to Make a Simple 12 Volt LED Lantern Circuit
In this post I have explained how to build a simple 12V LED lantern circuit which may be used at night while travelling and outings such as in picnics, trekking, or camping etc. Introduction So far we have discussed white LEDs comprehensively through many of my earlier articles and have learned how efficient these lights […]
How to Make a Simple Solar Inverter Circuit
In this article I will try to explain the basic concept of a solar inverter and also how to make a simple yet powerful solar inverter circuit. Solar power is abundantly available to us and is free to use, moreover it’s an unlimited, unending natural source of energy, easily accessible to all of us. What’s […]
How to Make Simple Solar Cooker at Home
If you are fed-up of ordinary inefficient solar cooker designs and wondering how to make a solar cooker that works in a truly effective way, then probably you have reached the right destination. A low cost solar cooker design that heats up instantly and actually cooks your food in minutes has been meticulously discussed here. […]
4 Simple VU Meter Circuits Explained
In this post I have explained how to build 4 interesting VU meter circuits, using LEDs and using a moving coil meter. What is a VU Meter VU meter or a volume unit meter circuit is a device used for indicating the music volume output from an amplifier or a loudspeaker system. It may be […]
Designing Simple Power Supply Circuits
In this post I have explained how to design and build a simple power supply circuit right from the basic design to the reasonably sophisticated power supply having extended features. Power Supply is Indispensable Whether it’s an electronic noob or an expert engineer, all require this indispensable piece of equipment called the power supply unit. This is because no electronics […]