Specialized - Thyratron vacuum tubes

Thyratron

Directly heated mercury-vapor thyratron for high-voltage controlled rectification and industrial switching or regulating equipment.

Base

Not recorded

Socket

Not recorded

Heater

5 V

Sections

1

Thyratron

Indirectly heated mercury-vapor thyratron for high-voltage controlled rectification and industrial switching or regulating equipment.

Base

Not recorded

Socket

Not recorded

Heater

5 V

Sections

1

Thyratron

Cold-cathode glow-discharge gas triode for relay-control service, using grid-controlled breakdown for heaterless switching.

Base

G4V

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Hydrogen three-element thyratron for pulse-network discharge service, capable of more than approximately 1.5 MW pulse output at high repetition rates.

Base

Not recorded

Socket

SUPERJUMBO4B

Heater

6.3 V

Sections

1

Thyratron

Hydrogen thyratron for fast high-power pulse switching in network-discharge, pulse-modulator, crowbar, radar, or related pulsed-power service.

Base

Not recorded

Socket

GIANT7BAYONET

Heater

6.3 V

Sections

1

Thyratron

Large ceramic hydrogen thyratron rated for approximately 60 MW pulse switching.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

Former KU-275 designation for the 8301 very-high-power ceramic hydrogen pulse thyratron.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

Hydrogen thyratron designed for fast high-current crowbar protection of high-voltage equipment.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

Ceramic hydrogen thyratron for fast high-current crowbar protection service.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

Hydrogen thyratron for fast high-power pulse switching in network-discharge, pulse-modulator, crowbar, radar, or related pulsed-power service.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

Ceramic-metal hydrogen thyratron for compact high-power pulse modulators.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

Ceramic-metal hydrogen thyratron designed for compact radar and missile modulators, providing fast high-current switching in pulsed-power transmitter systems.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

Hydrogen thyratron designation documented with type 8765, intended for rapid high-current pulse switching in network-discharge and modulator applications.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

Hydrogen thyratron designation documented with type 8553, intended for rapid high-current pulse switching in network-discharge and modulator applications.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

Hydrogen-filled thyratron designed for network-discharge pulse service, providing rapid high-current switching of stored energy in pulsed-power systems.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Thyratron

Compact hydrogen thyratron designed for network-discharge pulse service, providing fast high-current switching in space-conscious pulsed-power equipment.

Base

Not recorded

Socket

SPECIAL4LOWLOSS

Heater

6.3 V

Sections

1

Rectifier

Eimac grid-controlled mercury-vapor rectifier for high-voltage supplies. Its control grid permits electronic switching of substantial rectified current, including use in paired full-wave circuits.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

Controlled hot-cathode gas-discharge tube for switching or relaxation-oscillator service, providing triggered conduction and repetitive timing-waveform generation.

Base

Not recorded

Socket

Not recorded

Heater

3 V

Sections

1

Thyratron

Controlled hot-cathode gas-discharge tube for switching or relaxation-oscillator service, providing triggered conduction and repetitive timing-waveform generation.

Base

Not recorded

Socket

Not recorded

Heater

3 V

Sections

1

Thyratron

Controlled hot-cathode gas-discharge tube for switching or relaxation-oscillator service, providing triggered conduction and repetitive timing-waveform generation.

Base

Not recorded

Socket

Not recorded

Heater

12.6 V

Sections

1

Thyratron

High-pressure pulse switching tube designed to produce intense current pulses, particularly for keyed VHF transmitters and related pulsed RF equipment.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Directly heated gas-filled switching tube designed for high-current control service, providing grid-triggered conduction in substantial power circuits.

Base

Not recorded

Socket

Not recorded

Heater

3 V

Sections

1

Thyratron

Special-quality xenon tetrode thyratron with negative-control characteristic, designed for equipment exposed to mechanical vibration and shock where statistically controlled electrical characteristics are required.

Base

Not recorded

Socket

B7G

Heater

6.3 V

Sections

1

Triode

Grid-controlled mercury-vapor half-wave rectifier providing triggered conduction for controlled power conversion and switching applications.

Base

Not recorded

Socket

Not recorded

Heater

4 V

Sections

1

Triode

Grid-controlled mercury-vapor half-wave rectifier providing triggered conduction for controlled power conversion and switching applications.

Base

Not recorded

Socket

Not recorded

Heater

4 V

Sections

1

Thyratron

Mercury-vapor tetrode thyratron with negative-control characteristic for motor control and other industrial power-switching applications.

Base

Not recorded

Socket

Not recorded

Heater

5 V

Sections

1

Thyratron

Russian cold-cathode thyratron for low-power signal conversion and ionic relay.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

National Electronics thyratron for control, timing, ignitor-firing, and related industrial switching service, with published peak-voltage and current ratings.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

National Electronics thyratron for control, timing, ignitor-firing, and related industrial switching service, with published peak-voltage and current ratings.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

National Electronics thyratron for control, timing, ignitor-firing, and related industrial switching service, with published peak-voltage and current ratings.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Triode

Indirectly heated mercury-filled thyratron designed for applications where little grid power is available, providing dependable high-current industrial switching and controlled conduction.

Base

DOWN

Socket

Not recorded

Heater

5 V

Sections

1

Triode

Indirectly heated mercury-vapor thyratron designed for control, timing, and ignitor-firing applications, with shield-grid construction supporting stable operation from high-impedance grid supplies.

Base

DOWN

Socket

Not recorded

Heater

5 V

Sections

1

Triode

Quick-heating rugged xenon thyratron designed for timing and control applications, with wide ambient-temperature operation for industrial equipment.

Base

BABE

Socket

UX4

Heater

2.5 V

Sections

1

Triode

Compact quick-heating xenon thyratron designed for motor-speed and welding-control applications, combining high-current capability with wide-temperature industrial operation.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Triode

Quick-heating rugged xenon thyratron designed for timing, control, and other industrial applications, with wide-temperature operating capability.

Base

Not recorded

Socket

UX4

Heater

2.5 V

Sections

1

Thyratron

Mercury-vapor thyratron with positive-grid characteristic, particularly useful where anode current must remain absent whenever no grid excitation is applied.

Base

DOWN

Socket

Not recorded

Heater

5 V

Sections

1

Triode

Compact quick-heating xenon thyratron designed for timing and control applications, providing rapid starting and stable operation across a wide temperature range.

Base

A4-10

Socket

UX4

Heater

6.3 V

Sections

1

Thyratron

Indirectly heated mercury-vapor thyratron designed for control, timing, and ignitor-firing applications, with shield-grid construction providing stable operation from high-impedance control circuits.

Base

DOWN

Socket

Not recorded

Heater

5 V

Sections

1

Triode

Quick-heating gas-and-mercury thyratron designed especially for ignitor firing and regulated-rectifier applications, with stable characteristics across wide temperature limits.

Base

DOWN

Socket

UX4

Heater

2.5 V

Sections

1

Thyratron

Lug-base version of the quick-heating NL710 gas-and-mercury thyratron for ignitor firing and regulated-rectifier applications.

Base

DOWN

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

Quick-heating industrial gas-and-mercury thyratron designed especially for timing control and regulated-rectifier applications across wide temperature limits.

Base

DOWN

Socket

UX4

Heater

2.5 V

Sections

1

Thyratron

Mercury-filled thyratron related to NL714 but intended for higher-voltage operation, including applications such as amateur-radio transmitter power control.

Base

DOWN

Socket

UX4

Heater

2.5 V

Sections

1

Triode

Compact quick-heating gas-and-mercury thyratron for timing and control applications, designed for wide-temperature operation and long service life without circuit cushioning.

Base

A4-10

Socket

UX4

Heater

2.5 V

Sections

1

Triode

Quick-heating gas-and-mercury thyratron for motor-speed control and regulated rectifiers. Its heavy cathode supports substantial industrial controlled current.

Base

DOWN

Socket

Not recorded

Heater

2.5 V

Sections

1

Triode

Metal-envelope gas-and-mercury thyratron for resistance welding and AC control. Its massive filament supports very heavy industrial switching.

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Triode

Quick-heating industrial gas-and-mercury thyratron for heavy ignitor firing, motor-speed control, and regulated rectifier equipment.

Base

DOWN

Socket

SJ4

Heater

2.5 V

Sections

1

Thyratron

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

Base

Not recorded

Socket

Not recorded

Heater

2.5 V

Sections

1

Thyratron

Quick-heating industrial gas-and-mercury thyratron for heavy ignitor firing, motor-speed control, and regulated rectifier service.

Base

DOWN

Socket

Not recorded

Heater

2.5 V

Sections

1