Aluminum electrolytic capacitor Aluminum electrolytic capacitor Aluminum electrolytic capacitors are polarized electrolytic capacitors whose anode electrode (+) is made of a pure aluminum foil with an etched surface. The aluminum forms a very thin insulating layer of aluminium oxide by anodization that acts as the dielectric of the capacitor. A non-solid electrolyte covers the rough surface of the oxide layer, serving in principle as the second electrode (cathode) (-) of the capacitor. A second aluminum foil called “cathode foil” contacts the electrolyte and serves as the electrical connection to the negative terminal of the capacitor. Aluminum electrolytic capacitors are divided into three subfamilies
Electrolytic Zinc Electrolytic Zinc Electrolytic Zinc or the Electrolyic Zinc Company of Australasia (frequently abbreviated to "EZ" ) was the company that operated a Zinc refinery on the banks of the Derwent River in Risdon in Hobart in Tasmania between 1916 and 1984. The refinery was often given names such as the "Risdon works", the "Zinc works","reduction works" The current usage and place name located at the Risdon works is identified as Lutana. The operations of the Risdon works were tied in with the mining of zinc in Rosebery on the West Coast of Tasmania. The company started operation in 1916 at