Selecting and connecting solar panels of assorted voltage or wattage in series and parallel configurations, and manufactured by different suppliers is generally a sought after question by most DIYers. Even […]
Under Soil Gold Detector Circuit
The article talks about a surprisingly simple under soil gold detector circuit for estimating buried metals like gold, iron, tin, brass etc by detecting alternation in the resistance of the […]
Solar Charger Circuit with Boost Converter
The post explains how to build a simple 12V solar charger circuit with boost converter capable of charging 12V battery from a 3V solar panel. A Solar Charger excellent for […]
Simple 100 watt to 500 watt Inverter Circuit
The purpose to build a simple 100 watt to 500 watt inverter circuit is to apply power on various electronic devices like computer, television, tapes and so on. The principle […]
Simple Telephone Amplifier Circuit
This telephone amplifier circuit saves the trouble of holding the telephone handset while talking. It is also very useful when a group of people want to listen to the telephone […]
Simple Wheel RPM Meter Circuit
In this post we learn how to make a simple wheel RPM meter circuit for calibrating the RPM in crucial machines which require precise RPM settings. All types machine wheel […]





