Specialized - Thyratron vacuum tubes

Triode

Quick-heating industrial gas-and-mercury thyratron for welding control, motor-speed control, and regulated rectifiers. Its massive cathode supports heavy switching.

Base

DOWN

Socket

SJ4

Heater

2.5 V

Sections

1

Thyratron

Industrial thyratron for grid-controlled rectifier and control service. Its massive directly heated cathode supports heavy controlled current.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

Quick-heating industrial gas-and-mercury thyratron for welding, motor-speed control, and regulated rectifier applications.

Base

DOWN

Socket

Not recorded

Heater

2.5 V

Sections

1

Triode

Industrial thyratron for timing, control, welding, and regulated-rectifier service. Its heavy cathode supports substantial controlled power.

Base

Not recorded

Socket

SJ4

Heater

2.5 V

Sections

1

Thyratron

Xenon-filled thyratron for relay, motor-control, and ignitor-firing service. Controlled gas discharge switches substantial industrial current.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Directly heated gas-filled triode with highly insulated external grid for pulse and relay circuits. Grid triggering provides controlled discharge switching.

Base

Not recorded

Socket

Not recorded

Heater

1.85 V

Sections

1

Thyratron

Mercury-vapor tetrode thyratron for controlled rectification, motor-speed control, switching, furnace and lamp control, and resistance welding.

Base

Not recorded

Socket

Not recorded

Heater

5 V

Sections

1

Thyratron

Directly heated mercury-vapor and inert-gas thyratron for motor control, AC control, and industrial switching.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

Directly heated mercury-vapor/gas thyratron for cinema rectifiers, battery chargers, and industrial rectifier service. Its massive filament supports heavy current.

Base

Not recorded

Socket

Not recorded

Heater

1.9 V

Sections

1

Thyratron

Directly heated xenon-filled tetrode thyratron for electronic timers and grid-controlled rectifiers. Trigger-grid action provides controlled discharge.

Base

Not recorded

Socket

Not recorded

Heater

2 V

Sections

1

Thyratron

Gas-filled relay and pulse-control thyratron. Controlled discharge provides electronic switching for timing, relay, and pulse circuits.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Gas-filled tetrode thyratron for relay, timing, and stabilized rectifier service. Grid control initiates reliable discharge switching.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

Mercury-vapor thyratron triode for motor control, production machinery, elevator control, and resistance welding. Its heavy heater supports substantial current.

Base

Not recorded

Socket

Not recorded

Heater

5 V

Sections

1

Thyratron

Heavy-duty mercury-vapor thyratron triode for continuous motor control, relay service, and industrial applications. Its massive heater supports heavy current.

Base

Not recorded

Socket

Not recorded

Heater

5 V

Sections

1

Thyratron

Gas-filled tetrode thyratron for relay service, electronic timers, stabilized rectifiers, and grid-controlled rectifiers.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

Directly heated mercury-vapor and inert-gas thyratron triode with negative-control characteristic for industrial power switching.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

Mercury-vapor thyratron for relay, alarm/protection, and controlled-rectifier service. Grid triggering controls substantial power.

Base

Not recorded

Socket

Not recorded

Heater

5 V

Sections

1

Thyratron

Inert-gas tetrode thyratron for relay, servo-control, controlled-rectifier, and pulse-modulator service. Grid triggering provides versatile electronic switching.

Base

Not recorded

Socket

Not recorded

Heater

3 V

Sections

1

Thyratron

Subminiature gas thyratron for compact switching and control circuits. Its low-power directly heated filament suits small electronic equipment.

Base

4E

Socket

Not recorded

Heater

1.4 V

Sections

1

Thyratron

Mercury-vapor thyratron for high-voltage controlled rectification and industrial switching. Its heavy filament supports substantial controlled current.

Base

Not recorded

Socket

Not recorded

Heater

5 V

Sections

1

Thyratron

Gas triode trigger thyratron for pulse and control circuits. Grid triggering initiates abrupt gas-discharge conduction.

Base

8A

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

Heated gas-triode thyratron for sweep-oscillator service. Its controlled discharge supports relaxation time-base generation and grid-controlled switching.

Base

8H

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

Heated gas-triode thyratron for sweep-oscillator service. Controlled gas discharge provides relaxation timing and switching.

Base

8F

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

The S0.5/0.1iV is an indirectly heated noble-gas thyratron developed for timing circuits, relay switching, and electronic control equipment. Its oxide cathode, control grid, and screen grid provide triggered gas conduction. The compact device operates from a 6.3-volt heater supply.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

Gas-filled thyratron for electronic switching and controlled conduction. Available source material confirms thyratron service without a narrower application.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

Gas-filled thyratron for controlled-power switching. Its directly heated cathode supports substantial discharge current.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

The S1.3/10dV is a directly heated noble-gas thyratron intended for electronic switching and speed control of small electrical drives. Its oxide-coated filament supports thermionic emission, while the control grid triggers conduction through the gas discharge. The tube is suitable for controlled-power circuits.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

Gas-filled thyratron for industrial controlled-power service. Its heavy directly heated cathode supports substantial switching current.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

The S1.3/2iV is an indirectly heated noble-gas thyratron designed primarily for relay-control applications. Its oxide cathode, control grid, and screen grid support electrically triggered switching of load current. The device operates from a 6.3-volt heater and is related to the 6574 family.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

Heavy-current gas-filled thyratron for industrial power control. Its massive directly heated cathode supports substantial discharge switching.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

The S1.3/30dV is a directly heated noble-gas thyratron intended for industrial electronic control, motor-speed regulation, and ignitron triggering. Its oxide-coated filament provides emission for controlled gas discharge. The device combines grid-triggered switching with relatively high current-handling capability.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

The S1.5/150dM is a directly heated mixed-gas thyratron containing noble gas and mercury vapor. It was developed for industrial electronic control and continuous motor-speed adjustment in high-power electrical drives. Its oxide cathode and triggering grid provide controlled conduction under specified thermal conditions.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

Very-high-current thyratron for heavy industrial power control. Its enormous directly heated cathode supports substantial controlled discharge.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

The S1.5/40dV is a directly heated noble-gas thyratron designed for industrial control, motor-speed regulation, and ignitron firing circuits. Its oxide-coated filament and triggering grid provide controlled current switching. The glass device supports substantial discharge currents with appropriate electrical protection.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

The AEG S15/40i is an indirectly heated mercury-vapor thyratron designed for controlled rectification and industrial switching. Its separate oxide cathode and control grid permit triggered conduction in mercury vapor. The glass envelope requires vertical mounting with the base downward.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Heavy-current thyratron for industrial controlled-power service. Its large heater supports substantial gas-discharge switching.

Base

Not recorded

Socket

Not recorded

Heater

5 V

Sections

1

Thyratron

Mercury-vapor thyratron for heavy industrial power control. Its large directly heated cathode supports substantial low-drop discharge current.

Base

Not recorded

Socket

Not recorded

Heater

5 V

Sections

1

Thyratron

Very-high-current thyratron for heavy industrial controlled-power service. Its massive directly heated cathode supports substantial switching.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

The S1.5/80dV is a directly heated noble-gas thyratron designed for electronic control systems and variable-speed electric drives. Its control grid determines the initiation of conduction through the gas-filled envelope. The oxide-coated filament operates from a 2.5-volt heating supply.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

Very-high-current thyratron for industrial power control. Its massive directly heated cathode supports heavy controlled gas discharge.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

Mercury-vapor thyratron for very-heavy industrial power control. Its enormous heater supports substantial low-drop discharge current.

Base

Not recorded

Socket

Not recorded

Heater

5 V

Sections

1

Thyratron

Mercury-vapor thyratron for industrial controlled-power service. Its heavy directly heated cathode supports substantial low-drop discharge.

Base

Not recorded

Socket

Not recorded

Heater

5 V

Sections

1

Thyratron

Xenon negative-control thyratron for high-current grid-controlled rectifier service. Its massive filament supports heavy controlled gas discharge.

Base

4BZ

Socket

IO

Heater

2.5 V

Sections

1

Triode

Noble-gas triode thyratron for relay and control applications. Grid triggering initiates controlled gas-discharge switching.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Triode

Mercury-vapor triode thyratron for relay and control applications. Grid-controlled discharge provides reliable power switching.

Base

Not recorded

Socket

Not recorded

Heater

5 V

Sections

1

Tetrode

Noble-gas tetrode thyratron for relay and control applications. Its grid structure provides controlled gas-discharge switching.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Triode

High-voltage mercury-vapor triode thyratron for substantial controlled-power service. Its heavy heater supports high-current discharge.

Base

Not recorded

Socket

Not recorded

Heater

5 V

Sections

1

Thyratron

Mercury-vapor thyratron for high-voltage controlled rectification and industrial switching. Its heavy filament supports substantial current.

Base

Not recorded

Socket

Not recorded

Heater

5 V

Sections

1