Thyratron Valve Characteristics Apparatus using Thyratron valve 2D21

The Thyratron Valve Characteristics Apparatus using Thyratron valve 2D21 is an educational laboratory instrument designed to measure and plot the voltage-current (V-I) characteristics of the 2D21 thyratron valve at varying grid voltages.

Key Features

Includes two DC regulated power supplies (0-5VDC/150mA and 0-15VDC/150mA), an AC power supply (6.3 VAC/1 Amp) for the valve heater, and three round meters for precise voltage and current measurements.

The valve diagram is printed on the front panel with all supply and valve connections accessible via 4 mm sockets for easy wiring and experimentation.

Allows observation of conduction behavior under various grid voltages to understand plasma ionization and conduction properties.

The apparatus supports studying the negative control characteristics and high control ratio typical of the Thyratron valve 2D21.

Operation

The grid voltage controls the ionization process inside the valve, influencing the current flow from cathode to anode.

Measurements recorded on the meters help plot characteristic curves to visualize conduction onset and behavior under different electrical conditions.

This apparatus is essential for practical learning and research into thyratron valve operation, ionization, and switching behavior in plasma-filled electronic tubes.