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Common Detailed Techniques For Electron Tubes Or Discharge Tubes
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Abstract
Una lámpara eléctrica de sobremesa, constituida por una base o peana, que oculta un contrapeso, calculado, de plomo y que recibe en un orificio la conducción eléctrica, a cuya base va fijada por rosca u otro sistema, un tubo flexible en espiral montada sobre metal blando, de tamaño variable, rematado en una cabeza en la que va fijado, formando ángulo recto, otro tubo de menor diámetro, rígido, recto o curvado, que en su extremo se dobla ligeramente y termina en rosca para poder montar el casquillo y el portalámparas.