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A plate, usually called anode in Britain, is a type of electrode that forms part of a vacuum tube. 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. The plate is given a positive potential, and its function is to attract and capture the electrons emitted by the cathode. Although it is sometimes a flat plate, it is more often in the shape of a cylinder or flat open-ended box surrounding the other electrodes.

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  • Plate electrode (en)
  • Placa (válvula termiônica) (pt)
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  • A plate, usually called anode in Britain, is a type of electrode that forms part of a vacuum tube. 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. The plate is given a positive potential, and its function is to attract and capture the electrons emitted by the cathode. Although it is sometimes a flat plate, it is more often in the shape of a cylinder or flat open-ended box surrounding the other electrodes. (en)
  • Uma placa ou placa eletrônica, é um tipo de eletrodo que faz parte de um tubo de vácuo. Geralmente é feito de chapa metálica, conectada a um fio que passa através do invólucro de vidro do tubo até um terminal na base do tubo, onde está conectado ao circuito externo. A placa recebe um potencial positivo, e sua função é atrair e capturar os elétrons emitidos pelo cátodo. Embora, às vezes, seja uma placa plana, é mais frequentemente na forma de um cilindro ou de uma caixa aberta plana ao redor dos outros eletrodos. (pt)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Roehre_anode_el84.jpg
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  • A plate, usually called anode in Britain, is a type of electrode that forms part of a vacuum tube. 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. The plate is given a positive potential, and its function is to attract and capture the electrons emitted by the cathode. Although it is sometimes a flat plate, it is more often in the shape of a cylinder or flat open-ended box surrounding the other electrodes. (en)
  • Uma placa ou placa eletrônica, é um tipo de eletrodo que faz parte de um tubo de vácuo. Geralmente é feito de chapa metálica, conectada a um fio que passa através do invólucro de vidro do tubo até um terminal na base do tubo, onde está conectado ao circuito externo. A placa recebe um potencial positivo, e sua função é atrair e capturar os elétrons emitidos pelo cátodo. Embora, às vezes, seja uma placa plana, é mais frequentemente na forma de um cilindro ou de uma caixa aberta plana ao redor dos outros eletrodos. (pt)
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