A few types of tube permit operation with the anodes at a dull red heat; in other types, red heat indicates severe overload. Source: Internet
Aware the difficulties in laying transatlantic cable had not yet been solved, Lindsay took a great interest in the debate, with the revolutionary suggestion of using electric arc welding to join cables, and sacrificial anodes to prevent corrosion. Source: Internet
For example, in copper refining, copper anodes, an intermediate product from the furnaces, are electrolysed in an appropriate solution (such as sulfuric acid ) to yield high purity (99.99%) cathodes. Source: Internet
Electric current will naturally flow between zinc and steel but in some circumstances inert anodes are used with an external DC source. Source: Internet
For example, cathodic protection of a buried pipeline can be achieved by connecting anodes made from zinc to the pipe. Source: Internet
High-power amplifier tubes are designed with external anodes which can be cooled by convection, forced air or circulating water. Source: Internet