Western Electric 256-A Argon-filled Grid-controlled Rectifier
Thyratron

Argon gas gave the tube parameters a stability with variations in ambient temperatures unobtainable in tubes employing only mercury vapor. The tube was designed so that for any given anode potential there was a corresponding critical grid potential. If the grid was held more negative than this value, and the tube was not conducting, the anode would remain zero. If E_g were made less negative, the anode current would assume a value determined by the applied anode potential and the impedance in the anode circuit. The grid loses all control once the discharge has begun.

Fiche technique • Data sheet • Datenblatt: 256A.pdf

 

Hauteur • Height • Höhe : 11,5 cm • 4" 1/2
Diamètre • Diameter • Durchmesser : 44 mm • 1" 3/4

 

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