Specialized tube type
Specialized - Thyratron vacuum tubes
Specialized - Thyratron records in Tube Tinker cover 571 tube designations, including 1,229 preserved original datasheets. Compare bases, sockets, heater requirements, construction, exact variations, and directional replacement options.
- Tube records
- 571
- Original datasheets
- 1,229
- Variation families
- 42
- Tubes with alternatives
- 23
About Specialized - Thyratron tubes
If the tube is described as a thyratron then apply this type.
Electrical range
- Nominal heater voltage
- 1.25–220 V
- Nominal heater current
- 0.05–190 A
Common specialized - thyratron characteristics
These are the most frequently recorded attributes among tubes in this category.
Bases
- DOWN13
- 4BZ7
- A4-107
- 4CF4
- 4D4
- B7G4
- B7D3
- 3G2
Sockets
- UX435
- IO27
- B9A23
- B7G19
- A10
- SPECIAL38
- B4B7
- SJ45
Constructions
- Thyratron519
- Triode36
- Rectifier9
- Tetrode7
Specialized - Thyratron tube list
Page 2 of 12
3C45W Thyratron
Ruggedized hydrogen thyratron for high-power network-discharge pulse switching, with reservoir control for stable long-life operation.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 6.3 V
- Sections
- 1
3D22 Thyratron
Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.
- Base
- B7D
- Socket
- Not recorded
- Heater
- 6.3 V
- Sections
- 1
3D22A Thyratron
Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.
- Base
- Not recorded
- Socket
- IO
- Heater
- 6.3 V
- Sections
- 1
3G25 Thyratron
Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 5 V
- Sections
- 1
3G49P Thyratron
Hydrogen thyratron with adjustable hydrogen reservoir for high-speed pulse-switching and pulse-modulator service.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 6.3 V
- Sections
- 1
3G501A Thyratron
Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.
- Base
- Not recorded
- Socket
- B4D
- Heater
- 2.5 V
- Sections
- 1
3V340B Thyratron
Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.
- Base
- Not recorded
- Socket
- B4
- Heater
- 2.5 V
- Sections
- 1
3V390A Thyratron
Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.
- Base
- Not recorded
- Socket
- UX4
- Heater
- 5 V
- Sections
- 1
3V390B Thyratron
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
- Not recorded
- Socket
- Not recorded
- Heater
- 5 V
- Sections
- 1
3V420B Thyratron
Indirectly heated mercury-vapor thyratron for controlled switching and rectifier service, using grid triggering to initiate the conductive gas-discharge state.
- Base
- Not recorded
- Socket
- B5
- Heater
- 5 V
- Sections
- 1
3V490A Thyratron
Mercury-vapor thyratron designed for industrial-control switching, using grid control to trigger high-current conduction in power-control and controlled-rectifier circuits.
- Base
- Not recorded
- Socket
- B4D
- Heater
- 5 V
- Sections
- 1
3V500A Thyratron
High-voltage mercury-vapor thyratron for controlled power switching and rectification, using grid triggering to initiate conduction in demanding high-voltage circuits.
- Base
- Not recorded
- Socket
- LARGE4BAYONET
- Heater
- 4 V
- Sections
- 1
3V530E Thyratron
Directly heated hot-cathode mercury-vapor thyratron for controlled high-voltage rectifier and switching circuits, corresponding to the 4078GA family.
- Base
- Not recorded
- Socket
- SPECIAL3
- Heater
- 5 V
- Sections
- 1
3V531E Thyratron
Directly heated hot-cathode mercury-vapor thyratron documented as an electrical replacement for obsolete 4078GA, intended for controlled high-voltage switching and rectifier service.
- Base
- Not recorded
- Socket
- SPECIAL3
- Heater
- 5 V
- Sections
- 1
3V560E Thyratron
Directly heated hot-cathode mercury-vapor thyratron for controlled high-voltage rectifier and switching circuits, corresponding to the 4079GA family.
- Base
- Not recorded
- Socket
- SPECIAL3
- Heater
- 5 V
- Sections
- 1
3V561E Thyratron
Directly heated hot-cathode mercury-vapor thyratron documented as an electrical replacement for obsolete 4079GA, intended for controlled high-voltage switching and rectifier service.
- Base
- Not recorded
- Socket
- SPECIAL3
- Heater
- 5 V
- Sections
- 1
3V590E Thyratron
Directly heated hot-cathode mercury-vapor thyratron for controlled high-voltage rectifier and switching circuits, corresponding to the 4080GA family.
- Base
- Not recorded
- Socket
- SPECIAL3
- Heater
- 5 V
- Sections
- 1
4039A Thyratron
Mercury-vapor relay/control tube in which the grid triggers anode conduction; grid control returns only after the anode current is interrupted.
- Base
- Not recorded
- Socket
- B5
- Heater
- 4 V
- Sections
- 1
4049GD Thyratron
Hot-cathode mercury-vapor thyratron, coded 4049GD and associated with type 3V/500A, designed for controlled high-voltage switching and rectifier applications.
- Base
- Not recorded
- Socket
- LARGE4
- Heater
- 4 V
- Sections
- 1
4078GA Thyratron
Directly heated hot-cathode mercury-vapor thyratron for controlled high-voltage rectifier and switching circuits, using grid triggering to initiate heavy gas-discharge conduction.
- Base
- Not recorded
- Socket
- SPECIAL3
- Heater
- 5 V
- Sections
- 1
4079GA Thyratron
Directly heated hot-cathode mercury-vapor thyratron for controlled high-voltage rectifier and switching circuits, using grid triggering to initiate heavy gas-discharge conduction.
- Base
- Not recorded
- Socket
- SPECIAL3
- Heater
- 5 V
- Sections
- 1
4080GA Thyratron
Directly heated hot-cathode mercury-vapor thyratron for controlled high-voltage rectifier and switching circuits, using grid triggering to initiate heavy gas-discharge conduction.
- Base
- Not recorded
- Socket
- SPECIAL3
- Heater
- 5 V
- Sections
- 1
410A Thyratron
Mercury-vapor thyratron with negative control grid for controlled-rectifier and inverter service, providing grid-triggered power conduction in conversion and switching equipment.
- Base
- Not recorded
- Socket
- UX4
- Heater
- 2.5 V
- Sections
- 1
430A Thyratron
Three-electrode inert-gas-filled cold-cathode tube for fast-switching relay, regulator, rectifier, triggering, and control circuits, requiring no heated cathode.
- Base
- Not recorded
- Socket
- UX4
- Heater
- Not recorded
- Sections
- 1
430B Thyratron
Three-electrode inert-gas-filled cold-cathode tube for fast-switching relay, regulator, rectifier, triggering, and control service, using heaterless gas-discharge operation.
- Base
- Not recorded
- Socket
- UX4
- Heater
- Not recorded
- Sections
- 1
443A Thyratron
Western Electric/RMA cold-cathode trigger and control tube designed for rapid gas-discharge switching in pulse and control circuitry.
- Base
- Not recorded
- Socket
- UX4
- Heater
- Not recorded
- Sections
- 1
4686 Thyratron
Argon-filled heated gas triode designed for time-base oscillator service, generating repetitive timing or sweep waveforms through controlled gas-discharge operation.
- Base
- P30-IX
- Socket
- Not recorded
- Heater
- 4 V
- Sections
- 1
4C35 Thyratron
Hot-cathode grid-controlled hydrogen thyratron for high-voltage, high-current pulse service, providing rapid switching of substantial stored energy in pulsed-power circuits.
- Base
- 7
- Socket
- JUMBO4B
- Heater
- 6.3 V
- Sections
- 1
4C35A Thyratron
Hot-cathode grid-controlled hydrogen thyratron for high-voltage, high-current pulse service, providing rapid switching of substantial stored energy in pulsed-power circuits.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 6.3 V
- Sections
- 1
4C45 Thyratron
Hydrogen-filled thyratron for network-discharge pulse service, combining high peak voltage and current capability with a reservoir system supporting stable operating life.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 6.3 V
- Sections
- 1
4G280K Thyratron
Miniature grid-controlled thyratron for compact switching and control circuits, with operating characteristics and ratings defined in Standard Valves documentation.
- Base
- B7G
- Socket
- B7G
- Heater
- 6.3 V
- Sections
- 1
4G401A Thyratron
Grid-controlled thyratron for switching and controlled-conduction service, with electrical characteristics and operating ratings documented by Standard Valves.
- Base
- B7D
- Socket
- B7D
- Heater
- 6.3 V
- Sections
- 1
4G48P Thyratron
High-power hydrogen thyratron with adjustable hydrogen reservoir, designed for high-speed pulse switching where large peak currents and repeatable triggering are required.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 6.3 V
- Sections
- 1
502A Thyratron
Gas-filled negative-control triode thyratron designed for high-sensitivity relay-control service, providing grid-triggered switching from comparatively small control signals.
- Base
- 6BS
- Socket
- B7G
- Heater
- 6.3 V
- Sections
- 1
53TR40 Thyratron
Hydrogen-filled pulse thyratron designed to control pulse powers up to approximately 5 MW, providing rapid high-current switching for demanding pulsed-power equipment.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 6.3 V
- Sections
- 1
5528 Thyratron
Xenon-filled grid-controlled thyratron for controlled-rectifier service, combining high peak and average anode-current capability with grid-triggered gas conduction.
- Base
- Not recorded
- Socket
- B12A
- Heater
- 2 V
- Sections
- 1
5544 Thyratron
Grid-controlled gas thyratron documented by Amperex for controlled switching and power-conduction service, with published ratings and operating characteristics for industrial circuitry.
- Base
- Not recorded
- Socket
- B9A
- Heater
- 2.5 V
- Sections
- 1
5545 Thyratron
Grid-controlled gas thyratron documented by Amperex for controlled switching and power-conduction service, with published ratings and operating characteristics for industrial circuitry.
- Base
- Not recorded
- Socket
- B9A
- Heater
- 2.5 V
- Sections
- 1
5557 Thyratron
Grid-controlled gas thyratron for industrial power control. Its trigger grid initiates gas-discharge conduction for controlled rectification and switching.
- Base
- Not recorded
- Socket
- B4
- Heater
- 2.5 V
- Sections
- 1
5559 Thyratron
Grid-controlled gas thyratron for industrial power switching and controlled rectification. Published ratings support substantial controlled-current service.
- Base
- Not recorded
- Socket
- B4
- Heater
- 5 V
- Sections
- 1
5560 Thyratron
Four-electrode mercury-vapor thyratron with negative-control characteristics for high-impedance, low-grid-power control sources and substantial industrial switching.
- Base
- Not recorded
- Socket
- IO
- Heater
- 5 V
- Sections
- 1
5563 Thyratron
Mercury-vapor grid-controlled thyratron triode.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- Not recorded
- Sections
- 1
5563A Thyratron
Mercury-vapor negative-control triode thyratron for very-high-current switching. Its heavy filament and low-drop discharge suit demanding industrial power control.
- Base
- Not recorded
- Socket
- IO
- Heater
- 5 V
- Sections
- 1
5594 Thyratron
Inert-gas grid-controlled thyratron.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- Not recorded
- Sections
- 1
5632 Thyratron
Xenon-filled three-electrode thyratron for relay, motor-control, and ignitor-firing service. Grid triggering controls substantial gas-discharge current.
- Base
- 4CF
- Socket
- B7G
- Heater
- 2.5 V
- Sections
- 1
5643 Thyratron
Subminiature xenon-filled shield-grid thyratron for switching, counter, and grid-controlled rectifier service in compact electronic equipment.
- Base
- Not recorded
- Socket
- B8D
- Heater
- 6.3 V
- Sections
- 1
5664 Thyratron
Grid-controlled gas rectifier and thyratron for controlled power conversion. Trigger-grid action initiates gas-discharge conduction on command.
- Base
- Not recorded
- Socket
- UX4
- Heater
- Not recorded
- Sections
- 1
5665 Thyratron
Very-high-current xenon thyratron for grid-controlled rectifier and pulse service. Its massive filament supports heavy industrial controlled-discharge operation.
- Base
- Not recorded
- Socket
- B7G
- Heater
- 2.5 V
- Sections
- 1
