RJ45 Connections
RJ45 pinout connections and wiring diagrams for cat5, cat5E and cat6 data cables.
Resistor Colour Codes
A complete guide to resistor colour codes and calculating resistor resistance values.
Wiring Colours
Electrical wiring colours for common AC mains electrical wiring colours by country, UK, USA, CANADA, EU, SOUTH AFRICA, INDONESIA, AUSTRALIA, NEW ZEALAND, CHINA, BRASIL, INDIA …