ARGONAL 3-Phasen-Quecksilberdampf-Gleichrichter 13914 Type K.D.12/250
3-Phase Mercury arc rectifier
Redresseur à vapeur de mercure triphasé

Manufactured by • Fabriqué par • Hergestellt von : DeTeWe - Deutsche Telephonwerke und Kabelindustrie AG, Berlin (Deutschland)

A few percent alkali metal are added to the mercury cathode, and the glass body contains, besides mercury vapor, argon under low pressure. This ensures that the operating current may drop to very low values, about 0.1 - 0.3 A, without a quenching of the arc is to be feared.

 

Hauteur • Height • Höhe : 35 cm • 13" 3/4

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From: G. Harms, Die Stromversorgung von Fernmelde-Anlagen, Berlin, 1927

 

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