Electronic tube and vacuum tube catalog

Base

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Socket code

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Electrical Summary

Plate	9,000 V
Ik max	500 mA
V Inverse	2,000 V

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Ignitron-type gas switching tube for radar pulsing service. Its controlled discharge handles high-voltage pulse switching in radar modulator and related circuits.

Base

Refer to variations

Socket code

IO

Electrical Summary

Plate	3,000 V
Ik max	2 A

Sections

1

IO - International Octal

Sealed clamp-cooled mercury-pool ignitron designed primarily for resistance-welding control, providing extremely high-current controlled conduction for industrial welding power systems.

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Electrical Summary

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Water-cooled mercury-pool ignitron power switch for industrial welding and rectification.

Base

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Socket code

IO

Electrical Summary

Plate	500 V

Sections

1

IO - International Octal

Water-cooled steel-jacketed mercury-pool ignitron for resistance-welding control, designed to switch very high currents reliably in heavy industrial welding equipment.

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Socket code

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Electrical Summary

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Water-cooled mercury-pool ignitron power switch for industrial welding and rectification.

Base

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Socket code

IO

Electrical Summary

Plate	500 V
Ik max	5 A

Sections

1

IO - International Octal

High-current water-cooled mercury-pool ignitron designed for resistance-welding control, providing controlled conduction of very large industrial welding currents.

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Electrical Summary

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Water-cooled mercury-pool ignitron power switch for industrial welding and rectification.

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Socket code

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Electrical Summary

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Sealed stainless-steel-jacketed water-cooled mercury-pool ignitron designed primarily for resistance-welding control and exceptionally high peak-current industrial service.

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Socket code

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Electrical Summary

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Thermostatically controlled ignitron for heavy industrial power switching. Its mercury-pool discharge path handles very high current while thermal control maintains suitable operating conditions.

Base

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Socket code

B9A

Electrical Summary

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Sections

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B9A - Small-button Noval 9-contact

Water-cooled Amperex ignitron designed for welding-control and continuous rectifier service, providing high-current controlled mercury-pool conduction for industrial power equipment.

Base

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Socket code

B9A

Electrical Summary

Rectifier	200 mA
V Inverse	2,100 V

Sections

1

B9A - Small-button Noval 9-contact

Water-cooled very-high-current ignitron of the 5555/653B welder-control family. Controlled mercury discharge switches enormous industrial welding currents.

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Socket code

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Electrical Summary

Heater	0 V / 0 mA

Sections

1

Water-cooled mercury-pool ignitron designed for high-power rectification and AC control, providing controlled conduction of very large currents in industrial power systems.

Base

Unpackaged coaxial magnetron

Socket code

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Electrical Summary

Heater	16 V / 2.8 A
Plate	30,000 V / 2,000,000 W
Ik max	70 A

Sections

1

Mechanically tunable high-power pulsed magnetron designed for radar and related short-pulse microwave service over its specified tuning range.

Base

Unpackaged coaxial magnetron

Socket code

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Electrical Summary

Heater	16 V / 2.8 A
Plate	30,000 V / 2,000,000 W
Ik max	70 A

Sections

1

Mechanically tunable high-power pulsed magnetron designed for radar and related short-pulse microwave service over its specified tuning range.

Base

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Socket code

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Electrical Summary

Rectifier	150 A
V Inverse	2,100 V

Sections

1

Permanently sealed water-cooled ignitron for heavy industrial rectifier and AC-control service. Its mercury-discharge switching action handles hundreds of amperes continuously and enormous short-duration currents.

Base

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Socket code

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Electrical Summary

Heater	0 V / 0 mA

Sections

1

Water-cooled mercury-pool ignitron designed for frequency-changer resistance-welding control, providing high-current controlled conduction in specialized industrial welding power systems.

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Socket code

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Electrical Summary

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Water-cooled ignitron for industrial resistance-welder control. This heavy-current mercury-discharge device combines rectification with controlled switching for demanding welding power systems.

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Electrical Summary

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Water-cooled ignitron for welder-control service. Its controlled mercury-pool discharge switches extremely high industrial currents in resistance-welding equipment.

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Electrical Summary

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Insulated coated version of the water-cooled 5822 ignitron for industrial welder control. Its mercury-discharge construction provides heavy-current controlled rectification and switching.

Base

Refer to variations

Socket code

Refer to variations

Electrical Summary

Heater	6.3 V / 5.4 A
Plate	135 W
μ	25

Sections

1

Radiation- or forced-air-cooled high-frequency transmitting triode for VHF RF power amplification. Rated for 135 W plate dissipation, with published operation producing about 390 W output at frequencies to approximately 150 MHz.

Base

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Socket code

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Electrical Summary

Heater	5 V / 14.1 A
Plate	3,000 V / 250 W
μ	25

Sections

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High-frequency transmitting triode for medium-power RF service. Rated for 250 W plate dissipation and 3 kV plate voltage, with published operating conditions producing approximately 840–950 W RF output to about 100 MHz.

Base

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Socket code

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Electrical Summary

Heater	10 V / 10 A
Plate	450 W
μ	27

Sections

1

High-frequency transmitting triode for substantial RF power amplification. Rated for 450 W plate dissipation, with published operation producing approximately 1.67 kW output from a 4 kV plate supply at frequencies to about 100 MHz.

Base

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Socket code

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Electrical Summary

Rectifier	150 A
V Inverse	20,000 V

Sections

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Water-cooled mercury-pool ignitron for high-power electronic frequency changers, intermittent rectifiers, capacitor-discharge circuits, and DC short-circuit switching.

Base

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Socket code

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Electrical Summary

Rectifier	100 A
V Inverse	500 V

Sections

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Water-cooled mercury-pool ignitron for resistance-welding control and intermittent high-current rectifier service.

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Socket code

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Electrical Summary

Ik max	355 A

Sections

1

Water-cooled mercury-pool ignitron for resistance-welding control and rectifier service. Its controlled discharge handles extremely high peak currents in industrial equipment.

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Socket code

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Electrical Summary

Rectifier	350 A
V Inverse	4,000 V

Sections

1

Double-grid water-cooled mercury-pool ignitron designed for railroad-locomotive rectifier service.

Base

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Socket code

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Electrical Summary

Rectifier	200 A
V Inverse	2,100 V

Sections

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Water-cooled mercury-pool ignitron for railroad-locomotive rectifier and auxiliary-power service.

Base

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Socket code

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Electrical Summary

Ik max	2016 A
Rectifier	70 A
V Inverse	1,500 V

Sections

1

Water-cooled mercury-pool ignitron for frequency-changer resistance-welding control and industrial power-rectifier service.

Base

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Socket code

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Electrical Summary

Rectifier	100 A
V Inverse	2,100 V

Sections

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Temperature-controlled water-cooled mercury-pool ignitron for high-power industrial rectifier and AC-control service.

Base

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Socket code

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Electrical Summary

Rectifier	200 A
V Inverse	2,100 V

Sections

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Temperature-controlled water-cooled mercury-pool ignitron for high-power DC rectifier and 2400 V AC-control service.

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Socket code

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Electrical Summary

Plate	2,100 V

Sections

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Permanently sealed water-cooled mercury-pool ignitron for industrial 300–900 V DC rectifier circuits.

Base

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Socket code

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Electrical Summary

Plate	2,100 V

Sections

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Water-cooled mercury-pool ignitron for industrial rectifier and AC-control service with integral temperature protection.

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Electrical Summary

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Industrial mercury-pool ignitron power switch for controlled high-current rectifier, inverter, or resistance-welding service.

Base

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Socket code

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Electrical Summary

Rectifier	200 A
V Inverse	2,100 V

Sections

1

Water-cooled very-high-current mercury-pool ignitron of the 5555/653B welder-control family.

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Socket code

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Electrical Summary

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Industrial mercury-pool ignitron power switch for controlled high-current rectifier, inverter, or resistance-welding service.

Base

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Socket code

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Electrical Summary

Plate	1,100 V

Sections

1

Water-cooled double-grid mercury-pool ignitron designed for railroad-locomotive rectifier service, using multiple ignitors and coaxial cathode-current return for high-current traction power conversion.

Base

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Socket code

B9A

Electrical Summary

V Inverse	4,000 V

Sections

1

B9A - Small-button Noval 9-contact

Water-cooled double-grid ignitron for industrial rectifier and inverter service, providing controlled high-current mercury-pool switching.

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Electrical Summary

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Water-cooled ignitron for high-power AC control service. Its controlled mercury-discharge conduction switches extremely large industrial currents.

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Electrical Summary

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Pulse ignitron switch for high-voltage capacitor-discharge service. Controlled mercury-discharge conduction handles large short-duration currents in pulse-power systems.

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Electrical Summary

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Water-cooled industrial ignitron for high-current rectifier and control service. Its controlled mercury-discharge path handles extremely large power-system currents.

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Electrical Summary

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Ignitron variant electrically equivalent to 7179 with thermostatic cooling-water control. It provides heavy-current controlled rectification and industrial switching.

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Electrical Summary

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Water-cooled ignitron electrically equivalent to type 5551A. Its controlled mercury-discharge conduction handles extremely high industrial switching currents.

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Socket code

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Electrical Summary

Plate	2,500 V
V Inverse	2,500 V

Sections

1

Sealed stainless-steel ignitron for high-current short-duration pulse-welder service. Controlled mercury-discharge conduction switches enormous welding currents.

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Electrical Summary

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Water-cooled ignitron electrically equivalent to type 5552A. Its controlled mercury-discharge path handles very high industrial switching currents.

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Electrical Summary

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Water-cooled coaxial ignitron for frequency-changer welding service. Its controlled mercury-discharge construction handles very high peak currents.

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Electrical Summary

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Water-cooled coaxial ignitron for intermittent rectifier and AC-control service. Its controlled mercury-discharge path handles heavy industrial currents.

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Electrical Summary

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Sealed ignitron for electronic-contactor and resistance-welding control service. Controlled mercury-discharge conduction switches heavy industrial loads.

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Electrical Summary

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Sealed stainless-steel-jacketed ignitron intended for heavy switching service. Its controlled mercury-discharge path handles substantial industrial currents.

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Electrical Summary

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Ignitron designed for continuous-duty industrial power-rectifier service, using a mercury-pool cathode for controlled high-current conduction.

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Electrical Summary

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Sealed steel-envelope ignitron for low-inductance capacitor-discharge circuits, designed to switch extremely high pulse currents at voltages up to about 20 kV.