We can learn How To Test a Multi-Core Wire using Cable Tester Circuit through this tutorial, also this tool check if cable is working or not. Also, it helps find wrong connection like short or broken wire. This circuit works well for testing multi-core cables that contain several wires, also it helps check whether all […]
Meters and Testers
Simple Non-Contact 220V AC Detector Circuit using IC 555
Playing with electric wire is risky especially if we do not know electronics, also wrong use of electricity can be dangerous. So better to be safe before touching wire and first check if some electricity with leakage voltage is still there. This article for Simple Non-Contact 220V AC Detector Circuit using IC 555 show how […]
Broken Cable Detector Circuit using IC CD 4069
This post is for Broken Cable Detector Circuit using IC CD 4069. In this circuit there is no need to open wire to check, it work like metal finder but find AC current in wire but not in metal. Furthermore, it uses chip CD 4069 and this chip has small switches to turn ON light […]
Tachometer Circuit
This easy to build Tachometer Circuit is a small DIY tool to check speed of rotating shaft or disc; we used tachometer to know how fast shaft or wheel spin in RPS (revolutions per second). Furthermore, this simple circuit uses two 7-segment displays and one slotted opto sensor MOC7811 where all parts are easy to […]
Cable Tracer Circuit
Cable Tracer Circuit is of two part device, which help find and check right cable in group or inside wall. Also, it have two parts: transmitter and receiver and mostly people use it in telecom, network, fixing wires, security system and audio/video setup. Circuit Working for Cable Tracer Transmitter Circuit: Parts List: Components Values Quantity […]
Hand Grip Strength Tester Circuit
Do anyone want to test their grip strength? Like small hand wrestling with ourselves? So this Hand Grip Strength Tester Circuit is a hand grip tester, it uses simple electronic parts to check how hard we can squeeze; more squeeze then more lights turn ON which shows our grip power. Circuit Working: Parts List: Components […]