Electronic tube and vacuum tube catalog

Base

—

Socket code

UX4

Sections

1

Heater

5 V / 10 A

Plate

1,000 V

Ik max

6.4 A

4 pins - UX4 - Medium-shell UX 4-contact

Mercury-vapor tetrode thyratron for high-current grid-controlled switching. Its control grid triggers low-drop gas conduction for industrial power control.

Base

—

Socket code

—

Sections

1

Heater

6.3 V / 23 A

Plate

33,000 V

Heavy-duty thyratron with a very high heater demand for substantial controlled-current switching. Available source data establish thyratron service without supporting a narrower gas classification.

Base

—

Socket code

—

Sections

1

Heater

6.3 V / 1.8 A

Plate

1,000 V

Ik max

20 A

7 pins

Zero-bias miniature hydrogen thyratron for low-power radar pulse-modulator service. Fast gas switching provides rapid, repeatable high-voltage pulses.

Base

—

Socket code

—

Sections

1

Heater

5 V / 14 A

Plate

26,000 V

Ik max

2.5 A

3 pins

Mercury-vapor thyratron for high-voltage controlled rectification and industrial switching. Grid triggering controls substantial gas-discharge current with low forward drop.

Base

—

Socket code

—

Sections

1

Heater

5 V / 15 A

Plate

15,000 V

Ik max

40 A

3 pins

Mercury-vapor thyratron for high-voltage controlled rectification and industrial switching. Its heavy heater and grid control support substantial power conversion.

Base

—

Socket code

—

Sections

1

Heater

2.5 V / 5 A

Grid-controlled gas thyratron for controlled rectification and switching. Published ratings support substantial electronic power-control service.

Base

—

Socket code

—

Sections

1

Heater

6.3 V / 2.53 A

Hydrogen-reservoir grid-controlled thyratron for high-repetition-rate, high-current, high-voltage pulse service. Reservoir control maintains suitable gas pressure for fast switching.

Base

—

Socket code

—

Sections

1

Heater

6.3 V

Heavy-duty hydrogen thyratron with built-in reservoir for high-voltage pulsed switching. Its construction supports rapid, high-current pulse discharge.

Base

—

Socket code

—

Sections

1

Heater

6.3 V / 6.1 A

Plate

8,000 V

4 pins

Hydrogen thyratron for high-speed pulse switching. Gas discharge provides rapid high-current conduction for pulse-power and modulator circuits.

Base

—

Socket code

—

Sections

1

Heater

6.3 V / 6.1 A

Plate

8,000 V

4 pins

Hydrogen thyratron for high-speed pulse switching. Its controlled gas discharge supports rapid high-current pulse-power operation.

Base

—

Socket code

—

Sections

1

Heater

6.3 V / 2.25 A

Plate

3,000 V

4 pins

Hydrogen thyratron for high-speed pulse-switching service. Controlled gas discharge provides fast, repeatable conduction in pulse-power circuits.

Base

8J

Socket code

IO

Sections

1

Heater

6.3 V / 600 mA

Plate

1,300 V

Ik max

10 A

8 pins - IO - International Octal

Gas-filled thyratron for relay and grid-controlled rectifier service. Grid triggering initiates controlled gas conduction for switching and power-control circuits.

Base

—

Socket code

IO

Sections

1

Heater

6.3 V / 600 mA

Plate

250 V

Ik max

10 A

6 pins - IO - International Octal

Gas-filled thyratron for relay and grid-controlled rectifier service. Its control grid triggers gas discharge for electronic switching.

Base

—

Socket code

—

Sections

1

Heater

6.3 V / 600 mA

Plate

650 V

Ik max

1 A

2050-family gas-filled thyratron for relay and controlled-switching service. Available source material confirms the family function without supporting a narrower description.

Base

—

Socket code

IO

Sections

1

Heater

6.3 V / 600 mA

Plate

450 V

Ik max

100 mA

8 pins - IO - International Octal

Ruggedized xenon-filled four-electrode thyratron, electrically equivalent to 2050, for relay and controlled-rectifier service in demanding equipment.

Base

8J

Socket code

—

Sections

1

Heater

6.3 V / 600 mA

Ik max

375 mA

8 pins

Gas tetrode thyratron for relay service. Grid-controlled gas discharge provides abrupt electronic switching for control circuits.

Base

—

Socket code

—

Sections

1

Heater

6.3 V / 1.5 A

Plate

400 V

Thyratron for electronic switching and controlled conduction. Available manufacturer material confirms thyratron service without supporting a narrower functional description.

Base

—

Socket code

B7G

Sections

1

Heater

6.3 V / 600 mA

Plate

650 V

B7G - Miniature 7-contact

Xenon-filled tetrode thyratron for industrial switching and regulating circuits, including controlled-rectifier and sawtooth-generator service.

Base

—

Socket code

UX4

Sections

1

Heater

2.3 V / 1.7 A

Ik max

75 mA

5 pins - UX4 - Medium-shell UX 4-contact

Argon-filled heater-cathode thyratron for controlled switching, with millisecond-class deionization and moderate-current operation.

Base

—

Socket code

MEDIUM5

Sections

1

Heater

2.2 V / 550 mA

Ik max

200 mA

V Drop

24 V

4 pins - MEDIUM5 - Medium 5-contact transmitting-tube base

Argon-filled grid-controlled rectifier for relay and trigger circuits, controlled-frequency oscillators, level indication, and sweep generation.

Base

—

Socket code

B5

Sections

1

Heater

5 V / 2 A

Ik max

500 mA

V Drop

20 V

5 pins - B5 - European 5-pin base

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Base

5S

Socket code

IO

Sections

1

Heater

2.5 V / 2.5 A

Plate

200 V

Ik max

100 mA

5 pins - IO - International Octal

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Base

5A

Socket code

IO

Sections

1

Heater

2.5 V / 1.4 A

Plate

300 V

5 pins - IO - International Octal

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Base

—

Socket code

—

Sections

1

Heater

2.5 V / 2.5 A

Gas-filled trigger-service thyratron triode.

Base

—

Socket code

—

Sections

1

Heater

2.5 V / 650 mA

7 pins

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Base

B7G

Socket code

B7G

Sections

1

Heater

6.3 V / 600 mA

Plate

1,300 V

Ik max

600 mA

V Inverse

1,300 V

7 pins - B7G - Miniature 7-contact

Gas-filled tetrode thyratron widely used for relay, controlled-rectifier, and pulse-switching applications.

Base

Refer to variations

Socket code

IO

Sections

1

Heater

6.3 V / 600 mA

Ik max

100 mA

Rectifier

200 A

V Drop

8 V

V Inverse

1,300 V

7 pins - IO - International Octal

Ruggedized xenon-filled four-electrode thyratron for switching, pulse modulation, relay, and grid-controlled rectifier service under shock and vibration.

Base

—

Socket code

—

Sections

1

Heater

6.3 V / 10.6 A

Plate

16,000 V

4 pins

Hydrogen thyratron for high-power, high-speed pulse switching, interchangeable with 5C22 in pulse-modulator service.

Base

—

Socket code

—

Sections

1

Heater

6.3 V / 3.5 A

Plate

1,000 V

Gas-filled tacitron for relay, pulse-shaping, oscillator, switching, and servo-control circuits.

Base

—

Socket code

UX4

Sections

1

Heater

2.5 V / 7 A

Ik max

1.5 A

Rectifier

1.5 A

V Drop

15 V

V Inverse

500 V

5 pins - UX4 - Medium-shell UX 4-contact

Western Electric argon/mercury special-purpose diode for high-current switching and rectifier service rather than a grid-controlled thyratron.

Base

—

Socket code

B4B

Sections

1

Heater

2.5 V / 5 A

Rectifier

1500 A

V Drop

10 V

V Inverse

1,250 V

5 pins - B4B - Medium 4-pin bayonet

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Base

—

Socket code

UX4

Sections

1

Heater

10 V / 500 mA

Ik max

100 mA

V Drop

15 V

V Inverse

325 V

5 pins - UX4 - Medium-shell UX 4-contact

Western Electric argon-filled heater-cathode special-purpose diode; available manufacturer documentation does not establish a grid-controlled thyratron function.

Base

—

Socket code

UX4

Sections

1

Heater

2.5 V / 16 A

Plate

1,500 V

Ik max

4 A

Rectifier

4 A

V Drop

15 V

V Inverse

1,500 V

4 pins - UX4 - Medium-shell UX 4-contact

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Base

—

Socket code

UX4

Sections

1

Heater

2.5 V / 16 A

Plate

350 V

Ik max

4 A

Rectifier

4 A

V Drop

15 V

V Inverse

350 V

4 pins - UX4 - Medium-shell UX 4-contact

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Base

—

Socket code

B4B

Sections

1

Heater

2.5 V / 7 A

Plate

1,250 V

Ik max

1.5 A

V Drop

10 V

7 pins - B4B - Medium 4-pin bayonet

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Base

—

Socket code

UX4

Sections

1

Heater

2.5 V / 3.25 A

Plate

1,250 V

Ik max

640 mA

UX4 - Medium-shell UX 4-contact

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Base

—

Socket code

UX4

Sections

1

Plate

140 V

Ik max

13 mA

UX4 - Medium-shell UX 4-contact

Small cold-cathode neon thyratron requiring no heater, intended primarily for relay operation and also useful as a trigger tube, relaxation oscillator, and voltage regulator.

Base

UX4

Socket code

IO

Sections

1

Heater

2.5 V / 7 A

Plate

1,250 V

Ik max

1.8 A

V Drop

10 V

4 pins - IO - International Octal

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Base

Refer to variations

Socket code

UX4

Sections

1

Heater

6.3 V / 2.25 A

Plate

3,000 V

Ik max

35 A

V Drop

150 V

4 pins - UX4 - Medium-shell UX 4-contact

Hydrogen thyratron designed for fast high-power pulse switching, using rapid ionization and deionization for pulse-modulator and network-discharge service.

Base

—

Socket code

—

Sections

1

Heater

6.3 V

Plate

3,000 V

Ruggedized hydrogen thyratron for high-power network-discharge pulse switching, with reservoir control for stable long-life operation.

Base

B7D

Socket code

—

Sections

1

Heater

6.3 V / 2.6 A

Ik max

8 A

V Inverse

1 V

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Base

—

Socket code

IO

Sections

1

Heater

6.3 V / 2.85 A

Plate

1,500 V

7 pins - IO - International Octal

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Base

—

Socket code

—

Sections

1

Heater

5 V / 14 A

Plate

26,000 V

Ik max

2.5 A

3 pins

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Base

—

Socket code

—

Sections

1

Heater

6.3 V / 18.5 A

Plate

25,000 V

Hydrogen thyratron with adjustable hydrogen reservoir for high-speed pulse-switching and pulse-modulator service.

Base

—

Socket code

B4D

Sections

1

Heater

2.5 V / 21 A

B4D - Subminiature wire-ended

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Base

—

Socket code

B4

Sections

1

Heater

2.5 V / 5 A

Rectifier

500 mA

V Inverse

1.5 V

4 pins - B4 - European 4-pin base

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Base

—

Socket code

UX4

Sections

1

Heater

5 V / 4.5 A

4 pins - UX4 - Medium-shell UX 4-contact

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Base

—

Socket code

—

Sections

1

Heater

5 V / 4.5 A

4 pins

Hot-cathode mercury-vapor thyratron developed mainly for industrial control applications, using grid triggering to initiate high-current gas conduction in controlled power and switching circuits.

Base

—

Socket code

B5

Sections

1

Heater

5 V / 5.5 A

Rectifier

2.5 A

V Inverse

1.5 V

5 pins - B5 - European 5-pin base

Indirectly heated mercury-vapor thyratron for controlled switching and rectifier service, using grid triggering to initiate the conductive gas-discharge state.

Base

—

Socket code

B4D

Sections

1

Heater

5 V / 10.5 A

B4D - Subminiature wire-ended

Mercury-vapor thyratron designed for industrial-control switching, using grid control to trigger high-current conduction in power-control and controlled-rectifier circuits.