ELECTRONICS REPAIR GUIDE

How to Solder First a few safety precautions: Never touch the element or tip of the soldering iron. They are very hot (about 400°C) and wi...

circuit symbol Light Dependent Resistor (LDR) An LDR is an input transducer (sensor) which converts brightness (light) to resistanc...

Construction Standard Variable Resistor Variable resistors consist of a resistance track with connections at both ends and a wiper w...

Why is a heat sink needed? Heat sink Photograph © Rapid Electronics Waste heat is produced in transistors due to the current flowing thro...