Specialized - Switching Tube vacuum tubes

SurgeProtector

Neon-helium gas-filled telephone-line surge protector. Gas breakdown diverts damaging overvoltage transients away from communications equipment without requiring a heater.

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CounterSelectorSwitch

Decade counting tube with optical and electrical readout. Sequential gas-discharge transfer provides electronic decimal counting and direct indication.

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CounterSelectorSwitch

Decade counting display tube with heated cathode and fluorescent readout. Internal beam selection performs decimal counting while providing direct visible indication.

Base

Duodecal

Socket

B12A

Heater

6.3 V

Sections

1

CounterSelectorSwitch

Cold-cathode decade counting tube. Sequential gas-discharge transfer advances the count electronically through ten stable positions.

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Tetrode

Cold-cathode pulse tetrode for trigger and switching circuits. Gas-discharge operation provides abrupt pulse conduction without a conventional heater.

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Tetrode

Cold-cathode pulse tetrode for trigger and switching service. Its gas-discharge construction provides rapid heaterless pulse conduction.

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Tetrode

Cold-cathode pulse tetrode for high-speed trigger and switching circuits. Gas ionization provides abrupt controlled pulse conduction.

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Tetrode

Cold-cathode pulse tetrode for trigger and switching circuits. Its gas-discharge operation provides rapid heaterless pulse conduction.

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CounterSelectorSwitch

Ultra-fast beam-switching decade counter tube for scalers and analyzers. Electron-beam steering performs rapid decimal counting and selection.

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Heater

6.3 V

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1

MicrowaveTRSwitch

Broadband double pre-TR microwave protection tube for single-antenna radar systems around 2.9–3.23 GHz, intended for military and professional equipment.

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MicrowaveTRSwitch

Broadband gas-filled TR protection tube for military radar service. Its discharge rapidly isolates and protects the receiver during transmitter pulses.

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MicrowaveTRSwitch

Double gas-filled TR receiver-protection tube for X-band radar. Its discharge rapidly isolates sensitive receiver circuitry during high-power transmitter pulses.

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1

MicrowaveTRSwitch

Broadband coaxial passive crystal-protection spark-gap tube covering roughly 4–7.3 GHz. Microwave breakdown protects sensitive detector circuitry from high-power pulses.

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MicrowaveTRSwitch

Broadband total-coupling pre-TR radar protection tube for 1.2–1.4 GHz systems handling very high transmitter peak power.

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MicrowaveTRSwitch

Broadband total-coupling pre-TR radar protection tube for 1.2–1.4 GHz systems, providing receiver protection against megawatt-class transmitter pulses.

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Rectifier

Forced-air-cooled cold-cathode controlled high-voltage rectifier for multiphase industrial DC supplies. Its gas-discharge construction combines controlled switching with several amperes of rectified output.

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Triode

Coaxial ceramic high-power pulse triode for oscillator and hard-tube switching service. Very high pulse voltage and current capability, together with massive cooling capacity, suit major radar and pulsed-power systems.

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Heater

12 V

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1

Triode

Forced-air-cooled pulse power triode for oscillator and hard-tube switching service. Tens-of-kilovolts plate capability and very high pulse current make it suitable for substantial radar and pulsed RF equipment.

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Heater

8 V

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1

SparkGapPulseSwitch

Triggered ceramic-metal spark gap for electronic crowbar and energy-transfer applications. A trigger pulse initiates rapid high-current conduction to protect or discharge power systems.

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SparkGapPulseSwitch

Triggered ceramic-metal spark gap for crowbar protection and energy-transfer circuits. Triggered breakdown provides rapid high-current switching.

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SparkGapPulseSwitch

Triggered ceramic-metal spark gap for electronic crowbar and energy-transfer service. Its triggered discharge rapidly diverts or transfers stored electrical energy.

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SparkGapPulseSwitch

Triggered ceramic-metal spark gap for electronic crowbar and energy-transfer applications. Triggered ionization provides rapid high-current switching.

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RelayControlSwitch

Electrostatic relay for electronic control and switching. Electrostatic force operates the sealed switching mechanism without conventional electromagnetic relay coils.

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MechanicalVacuumSwitch

Single-pole double-throw vacuum switch for high-speed relay switching in high-current DC circuits. Mechanical contacts operate within vacuum for rapid, reliable interruption.

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MechanicalVacuumSwitch

Mechanically actuated single-pole double-throw vacuum switch for high-speed switching. Sealed vacuum contacts provide rapid circuit transfer with strong electrical isolation.

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CounterSelectorSwitch

Unidirectional cold-cathode gas-filled decade counter and distributor. Sequential discharge transfer performs electronic counting and routes outputs among ten positions.

Base

B12E

Socket

B12E

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1

RelayControlSwitch

High-speed primed-trigger cold-cathode tube developed as a coupling element for G10/241E decade-counter systems, transferring counting pulses between stages.

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Socket

B7G

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1

RelayControlSwitch

Cold-cathode three-electrode gas-filled triode with activated cathode for relay and counter applications. Gas-discharge conduction provides heaterless control switching.

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Socket

IO

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1

RelayControlSwitch

Cold-cathode gas-filled triode, printed G240/2D, for higher-power relay and counter applications. Its discharge provides heaterless electronic control.

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IO

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1

CounterSelectorSwitch

Cold-cathode gas-filled counting and computing tube for electronic counting and digital logic. Sequential discharge states perform logic and counting functions.

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IO

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1

Thyratron

Cold-cathode gas-filled trigger tube for switching, counting, and logic applications. Heaterless gas discharge provides rapid digital control.

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B7G

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1

Thyratron

Cold-cathode gas-filled trigger tube for switching, counting, and logic applications. Its heaterless discharge provides rapid electronic control.

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Socket

B9A

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1

RelayControlSwitch

Cold-cathode electronic touch-button relay tube triggered by touching its external control electrode. The cathode glow provides visible indication as an orange ring.

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Rectifier

The GKD150020 is a gas-discharge pulsed diode employing a hydrogen filling and an indirectly heated oxide-coated cathode. Its rugged metal-ceramic construction is intended for pulse clipping, protection, charging, and switching functions. It is designed for specialized electronic equipment requiring controlled high-voltage discharge.

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Tetrode

Russian high-power tetrode designed for pulse-modulator or pulse-power switching service in RF equipment, controlling high-voltage, high-current pulses rather than continuous linear amplification.

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Heater

6.3 V

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1

Tetrode

The Russian GMI101 is an indirectly heated pulse-switching tetrode intended for high-voltage modulators in specialized equipment. Its oxide cathode and control electrodes allow rapid commutation of stored electrical energy. The glass-envelope device is intended for short-duration pulse service with suitable cooling.

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Tetrode

The Russian GMI11 is an indirectly heated high-voltage pulse tetrode developed for switching energy in specialized electronic modulators. Its glass envelope houses an oxide cathode and grid-controlled electrode system. Operation requires careful control of pulse duration, anode voltage, and thermal limits.

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Tetrode

The Russian GMI111 is an indirectly heated pulse-power tetrode intended for high-voltage modulator circuits. Its oxide-cathode construction enables controlled switching of electrical energy during short pulses. The glass-envelope device supports specialized equipment requiring rapid and repeatable commutation.

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Tetrode

Russian high-power tetrode designed for pulse-modulator or pulse-power switching service in RF equipment, controlling high-voltage, high-current pulses rather than continuous linear amplification.

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26 V

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1

BeamTetrode

The Russian GMI15B is a directly heated pulse beam tetrode designed for modulators that partially discharge energy-storage capacitors. Its carbidized-tungsten filament and beam-forming electrode system support pulsed-power switching. The glass-envelope device requires operating conditions matched to its pulse-duration and voltage ratings.

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8 V

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1

BeamTetrode

The Russian GMI17B is an indirectly heated pulse beam tetrode intended for high-voltage commutation. Its oxide cathode and metal-glass envelope support rapid switching, while forced-air cooling removes operating heat. The device is designed for specialized high-voltage modulators and short-duration pulse applications.

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27 V

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1

Tetrode

Russian high-power tetrode designed for pulse-modulator or pulse-power switching service in RF equipment, controlling high-voltage, high-current pulses rather than continuous linear amplification.

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9.5 V

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Tetrode

The Russian GMI20 is an indirectly heated pulse tetrode developed for switching substantial peak power in electronic modulators. Its oxide cathode permits alternative heater connections, and the glass-envelope structure supports controlled short-duration pulses. Continuous and pulsed output-power ratings differ significantly.

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Heater

12.6 V

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1

Tetrode

The Russian GMI21 is an indirectly heated pulse tetrode designed for modulator circuits that partially discharge storage capacitors. Its oxide cathode and grid-controlled construction enable high-voltage switching during brief pulses. The tube uses a 6.3-volt heater and requires suitable pulse-duty limitations.

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6.3 V

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Tetrode

The Russian GMI211 is an indirectly heated pulse-power tetrode intended for electronic modulators using partial capacitor discharge. Its glass-envelope oxide-cathode construction provides controlled high-voltage switching. The device belongs to the GMI21 family but has its own specified heater and pulse characteristics.

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6.3 V

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Tetrode

Russian high-voltage pulse tetrode for modulator switching.

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4.3 V

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Tetrode

Russian high-voltage pulse tetrode for modulator switching.

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12.6 V

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Tetrode

Russian high-voltage pulse tetrode for modulator switching.

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Heater

12.6 V

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1