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2. Ignitron - Wikipedia

   en.wikipedia.org/wiki/Ignitron

   (1) Anode, (2) Cathode, (3) Ignitor, (4) Mercury, (5) Ceramic insulators, (6) Cooling fluid An ignitron is a type of gas-filled tube used as a controlled rectifier and dating from the 1930s. Invented by Joseph Slepian while employed by Westinghouse , Westinghouse was the original manufacturer and owned trademark rights to the name "Ignitron".

3. Anode - Wikipedia

   en.wikipedia.org/wiki/Anode

   The terms anode and cathode are not defined by the voltage polarity of electrodes, but are usually defined by the direction of current through the electrode. An anode usually is the electrode of a device through which conventional current (positive charge) flows into the device from an external circuit, while a cathode usually is the electrode through which conventional current flows out of ...

4. Cathodic protection - Wikipedia

   en.wikipedia.org/wiki/Cathodic_protection

   An impressed current cathodic protection system (ICCP) for a pipeline consists of a DC power source, often an AC powered transformer rectifier and an anode, or array of anodes buried in the ground (the anode groundbed). The DC power source would typically have a DC output of up to 50 amperes and 50 volts, but this depends on several factors ...

5. Galvanic anode - Wikipedia

   en.wikipedia.org/wiki/Galvanic_anode

   A galvanic anode, or sacrificial anode, is the main component of a galvanic cathodic protection system used to protect buried or submerged metal structures from corrosion. They are made from a metal alloy with a more "active" voltage (more negative reduction potential / more positive oxidation potential ) than the metal of the structure.

6. Electrofishing - Wikipedia

   en.wikipedia.org/wiki/Electrofishing

   Backpack electrofisher generators are either battery or gasoline powered. They employ a transformer to pulse the current before it is delivered into the water. The anode is located at the end of a long, two meter pole and is usually in the form of a ring. The cathode is a long, three-meter braided steel cable that trails behind the operator.

7. Plate electrode - Wikipedia

   en.wikipedia.org/wiki/Plate_electrode

   A plate, usually called anode in Britain, is a type of electrode that forms part of a vacuum tube. [1] It is usually made of sheet metal, connected to a wire which passes through the glass envelope of the tube to a terminal in the base of the tube, where it is connected to the external circuit.