Sylvania SA-541 Krytron

A krytron is a high speed, high current gas filled tube, somewhat similar to a cold-cathode thyratron. It consists of a sealed glass tube with four electrodes. The fourth terminal is a “keep alive” electrode that maintains a glow discharge in the tube at all times. A small triggering pulse on the grid electrode switches the tube on, allowing a large current to flow between the cathode and anode electrodes. There is also a small amount of radioactive ⁶³Ni in the tube, which helps further stabilize the propagation delay. Krytrons were used on the early atomic bombs, and on other mundane applications like copy machine flash triggers.

Internal marking: 7CQ-181.
Argon-filled.

No specific information available. • Aucune information spécifique disponible. • Keine spezifischen Informationen verfügbar.

 

Hauteur • Height • Höhe : 29 mm • 1" 1/8
Diamètre • Diameter • Durchmesser : 18 mm • 11/16"

 

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