Electronic tube and vacuum tube catalog

Base

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Socket code

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Plate

9,000 V

Ik max

500 mA

V Inverse

2,000 V

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

Sections

1

Plate

3,000 V

Ik max

2 A

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.

Base

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Socket code

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

Base

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Socket code

IO

Sections

1

Plate

500 V

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.

Base

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Socket code

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

Base

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Socket code

IO

Sections

1

Plate

500 V

Ik max

5 A

IO - International Octal

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

Base

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Socket code

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

Base

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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.

Base

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Socket code

—

Sections

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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

Sections

1

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

Sections

1

Rectifier

200 mA

V Inverse

2,100 V

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.

Base

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Socket code

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Sections

1

Heater

0 V / 0 mA

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

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Socket code

—

Sections

1

Rectifier

150 A

V Inverse

2,100 V

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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Sections

1

Heater

0 V / 0 mA

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

Base

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Socket code

—

Sections

1

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

Base

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Socket code

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Sections

1

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

Base

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Socket code

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Sections

1

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

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Socket code

—

Sections

1

Rectifier

150 A

V Inverse

20,000 V

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

—

Sections

1

Rectifier

100 A

V Inverse

500 V

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

Base

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Socket code

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Sections

1

Ik max

355 A

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

Base

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Socket code

—

Sections

1

Rectifier

350 A

V Inverse

4,000 V

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

Base

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Socket code

—

Sections

1

Rectifier

200 A

V Inverse

2,100 V

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

Base

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Socket code

—

Sections

1

Ik max

2016 A

Rectifier

70 A

V Inverse

1,500 V

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

Base

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Socket code

—

Sections

1

Rectifier

100 A

V Inverse

2,100 V

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

Base

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Socket code

—

Sections

1

Rectifier

200 A

V Inverse

2,100 V

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

Base

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Socket code

—

Sections

1

Plate

2,100 V

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

Base

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Socket code

—

Sections

1

Plate

2,100 V

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

Base

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Socket code

—

Sections

1

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

Base

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Socket code

—

Sections

1

Rectifier

200 A

V Inverse

2,100 V

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

Base

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Socket code

—

Sections

1

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

Base

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Socket code

—

Sections

1

Plate

1,100 V

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

Sections

1

V Inverse

4,000 V

B9A - Small-button Noval 9-contact

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

Base

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Socket code

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Sections

1

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

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Socket code

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Sections

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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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1

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

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Sections

1

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

Base

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Socket code

—

Sections

1

Plate

2,500 V

V Inverse

2,500 V

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

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Socket code

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Sections

1

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

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Socket code

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

Base

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Socket code

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Sections

1

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

Base

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Socket code

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Sections

1

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

Base

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Socket code

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Sections

1

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

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1

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

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Sections

1

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

Base

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Sections

1

Sealed stainless-steel-jacketed water-cooled coaxial ignitron for electronic-contactor, resistance-welding, and AC-control service in high-current industrial power systems.

Base

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Socket code

B9A

Sections

1

B9A - Small-button Noval 9-contact

Water-cooled coaxial mercury-pool ignitron designed for AC-control welder service, providing controlled switching of very large industrial currents.

Base

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Socket code

—

Sections

1

Plate

15,000 V

Ik max

600 mA

V Inverse

15,000 V

Sealed ignitron designed for low-inductance high-current capacitor-discharge circuits, switching pulses up to approximately 15 kV and 35 kA.

Base

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Socket code

B9A

Sections

1

B9A - Small-button Noval 9-contact

Coaxial mercury-pool ignitron electrically equivalent to type 7670 apart from mechanical dimensions, intended for high-current industrial switching and control service.

Base

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Socket code

B9A

Sections

1

B9A - Small-button Noval 9-contact

Forced-air-cooled coaxial mercury-pool ignitron designed specifically for railroad-locomotive electronic-contactor service and other high-current industrial switching applications.