Western Electric Thyratron Tube Model 355A

Manufacturer: Western Electric

Model Number: 355A

Serial #:

Equipment Description: Thyratron Tube

Label Write-up:
Mercury and argon thyratron for 48V regulated rectifiers or battery chargers in telephone exchange equipment. Four pin industrial base plus top cap. A thyratron is a switch or relay that switches higher currents than a vacuum tube. Since the 1960s thyristors have replaced thyratrons in most low and medium power applications.

Dates Produced: 1938

Original Price:

The museum's inventory number: MRT-1776

Located at Museum in: Tube Display Room