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 […]
Make this Quadraphonic Sound System Circuit
Quadraphonic Sound System (4 channel Sound) circuit is the most sophisticated sound system and gives a true feeling of music. Monophonic sound system is the simplest of all the audio […]
How to Test a SCR
In this post we learn how to test a SCR whether it’s good or bad using a couple of simple circuit implementations Simple SCR testing circuit Referring to the diagram […]
Automatic Light Circuit for Washroom
Building an automatic light for washroom is not at all complex. All you need to do is to follow the steps as described in this report to get the […]
Wireless Cellphone Battery Charger Circuit
This article will attempt to describe the way to build a wireless cellphone battery charger circuit. With a wireless charger you can just get rid of the wires and charge […]