Skip to main content
Tube Tinker — Electron Tube Database

Specialized tube type

Specialized - Switching Tube vacuum tubes

Specialized - Switching Tube records in Tube Tinker cover 582 tube designations, including 1,033 preserved original datasheets. Compare bases, sockets, heater requirements, construction, exact variations, and directional replacement options.

Search this type in the catalog →
Tube records
582
Original datasheets
1,033
Variation families
18
Tubes with alternatives
23

About Specialized - Switching Tube tubes

If the tube is described as a switching tube, transmit/receive etc. then apply this type.

Electrical range

Nominal heater voltage
0–27 V
Nominal heater current
0–1,800 A

Common specialized - switching tube characteristics

These are the most frequently recorded attributes among tubes in this category.

Bases

  • B12E2
  • B7G2
  • Duodecal2
  • Special 13-pin2
  • 4CK1
  • 4V1
  • 6AR1
  • 9AD1

Sockets

  • B9A23
  • UX415
  • IO12
  • B7G11
  • B12A5
  • SK1005
  • B26A4
  • B13B2

Constructions

  • MicrowaveTRSwitch215
  • SparkGapPulseSwitch85
  • CounterSelectorSwitch37
  • Tetrode37
  • Thyratron37
  • RelayControlSwitch33
  • SurgeProtector33
  • BeamSwitchingCommutator19

Specialized - Switching Tube tube list

Page 9 of 13

Open advanced catalog filters →
  • NF41

    MicrowaveTRSwitch

    Very-broadband radar TR power-limiting cell protecting receiver crystals across approximately 7–11.5 GHz.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • NSP1

    Tetrode

    Cold-cathode gas-discharge tetrode for stroboscopic neon-red light and very-high-peak-current pulse service. Ionized discharge produces intense short-duration conduction and light.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • OA4G

    Thyratron

    Cold-cathode gas triode with starter anode for relay service. Heaterless gas discharge provides abrupt electronic control and switching.

    Base
    Not recorded
    Socket
    IO
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • PJ71

    MicrowaveTRSwitch

    Resonant radar receiver-protection switch for approximately 570–615 MHz, protecting the receiver during high-power transmitter pulses.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • PL1267

    Thyratron

    Cold-cathode trigger tube for pulse and control circuits. Gas-discharge operation provides abrupt heaterless switching.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • PL5

    Thyratron

    Mercury relay valve with capacitive ignition for stroboscopes and film projection in television transmitters. Triggered discharge produces controlled high-current pulses.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • QEP2018

    Tetrode

    Pulse-modulator tetrode for high-voltage pulse systems. Its heater and electrode structure are optimized for substantial short-duration power rather than ordinary continuous amplification.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    26 V
    Sections
    1
    SpecificationsAlternatives
  • QF10

    MicrowaveTRSwitch

    Separate-cavity L-band TR cell for radar duplexer protection, equivalent to American type 1B23. Gas discharge isolates the receiver during transmitter pulses.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • QF11

    MicrowaveTRSwitch

    Separate-cavity L-band TR cell for radar duplexer and receiver protection. Gas-discharge switching provides rapid microwave isolation during transmission.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • QF40

    MicrowaveTRSwitch

    Integral-cavity high-Q 3-cm-band TR cell for radar duplexer and crystal-protection service. Gas discharge protects sensitive receiver components during transmitter pulses.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • QF41

    MicrowaveTRSwitch

    Tunable 3-cm-band TR gas-discharge cell with keep-alive electrode for microwave duplexer receiver protection and rapid recovery.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • QF41A

    MicrowaveTRSwitch

    Tunable X-band integral-cavity TR gas-discharge cell with primer electrode and preset tuning, designed for radar receiver protection.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • QF42A

    MicrowaveTRSwitch

    Medium-Q X-band integral-cavity TR gas-discharge cell for circular waveguide, using a preset tuner for radar receiver protection.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • QF50

    MicrowaveTRSwitch

    Tunable Q-band TR gas-discharge cell with primer electrodes for microwave receiver protection. Ionization rapidly isolates sensitive circuitry during transmission.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • QT1257

    RelayControlSwitch

    Cold-cathode touch-button tube used as a self-indicating electronic switch. Touching its control electrode triggers gas discharge capable of operating a relay.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • QV20P18

    Tetrode

    RF power tetrode for professional transmitting service. Its substantial heater power and electrode construction support high radio-frequency output.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    26 V
    Sections
    1
    SpecificationsAlternatives
  • QYS50P40

    Tetrode

    Very-high-power directly heated RF tetrode with a massive filament. It is intended for major transmitting installations requiring substantial radio-frequency output.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    11.5 V
    Sections
    1
    SpecificationsAlternatives
  • R181

    SparkGapPulseSwitch

    The Russian R181 is an uncontrolled spark-gap device intended for high-frequency circuit switching in radar equipment. Its glass envelope provides discharge switching for short electrical pulses. The tube is designed for specialized RF circuits requiring rapid commutation without a heated cathode.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R21

    SparkGapPulseSwitch

    The R21 is a Russian controlled spark-gap switching device intended for high-frequency circuit commutation in radar equipment. Its glass construction provides triggered discharge of stored electrical energy. The device operates in specialized pulsed circuits requiring controlled timing and repetitive electrical switching.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R22

    SparkGapPulseSwitch

    The Russian R22 is an uncontrolled spark-gap discharge device developed for electrical ignition systems. Its glass envelope accommodates repetitive high-voltage breakdown and controlled discharge of connected capacitance. It is intended for specialized pulse-generating and ignition applications rather than conventional vacuum-tube amplification.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R23

    SparkGapPulseSwitch

    Russian uncontrolled spark-gap switching/protection tube for overvoltage protection.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R24

    SparkGapPulseSwitch

    Russian controlled spark-gap switching/protection tube for high-frequency circuit commutation.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R26

    SparkGapPulseSwitch

    Russian uncontrolled spark-gap switching/protection tube for ignition systems.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R27

    SparkGapPulseSwitch

    Russian uncontrolled spark-gap switching/protection tube for overvoltage protection.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R28

    SparkGapPulseSwitch

    Russian uncontrolled spark-gap switching/protection tube for switching.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R29

    SparkGapPulseSwitch

    Russian uncontrolled spark-gap switching/protection tube for ignition systems.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R2M

    SparkGapPulseSwitch

    Russian uncontrolled spark-gap switching/protection tube for capacitive ignition systems.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R30

    SparkGapPulseSwitch

    Russian controlled spark-gap switching/protection tube for pulse light-source switching.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R34

    SparkGapPulseSwitch

    Russian uncontrolled spark-gap switching/protection tube for overvoltage protection.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R35

    SparkGapPulseSwitch

    Russian uncontrolled spark-gap switching/protection tube for overvoltage protection.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R350

    SparkGapPulseSwitch

    Russian uncontrolled spark-gap switching/protection tube for communication-line protection.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R37

    SparkGapPulseSwitch

    Russian controlled spark-gap switching/protection tube for pulse commutation.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R38

    SparkGapPulseSwitch

    Russian uncontrolled spark-gap switching/protection tube for general-purpose switching.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R4

    SparkGapPulseSwitch

    Russian uncontrolled spark-gap switching/protection tube for nonrecoverable equipment.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R41

    SparkGapPulseSwitch

    Russian controlled spark-gap switching/protection tube for switching and overvoltage protection.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R44

    SparkGapPulseSwitch

    Russian uncontrolled spark-gap switching/protection tube for ignition systems.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R45

    SparkGapPulseSwitch

    Russian spark-gap switching/protection tube for television overvoltage protection.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R46

    SparkGapPulseSwitch

    Russian spark-gap switching/protection tube for overvoltage protection.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R460

    SparkGapPulseSwitch

    Russian uncontrolled spark-gap switching/protection tube for communication-line protection.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R47

    SparkGapPulseSwitch

    Russian spark-gap switching/protection tube for high-voltage pulse commutation.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R48

    SparkGapPulseSwitch

    Gas-discharge spark-gap device for high-voltage switching, pulse generation, or surge protection; specifications from Russian Spark Gap datasheet.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R49

    SparkGapPulseSwitch

    Gas-discharge spark-gap device for high-voltage switching, pulse generation, or surge protection; specifications from Russian Spark Gap datasheet.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R5

    SparkGapPulseSwitch

    Gas-discharge spark-gap device for high-voltage switching, pulse generation, or surge protection; specifications from Russian Spark Gap datasheet.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R52

    SparkGapPulseSwitch

    Gas-discharge spark-gap device for high-voltage switching, pulse generation, or surge protection; specifications from Russian Spark Gap datasheet.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R54

    SparkGapPulseSwitch

    Gas-discharge spark-gap device for high-voltage switching, pulse generation, or surge protection; specifications from Russian Spark Gap datasheet.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R55

    SparkGapPulseSwitch

    Gas-discharge spark-gap device for high-voltage switching, pulse generation, or surge protection; specifications from Russian Spark Gap datasheet.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R56

    SparkGapPulseSwitch

    Gas-discharge spark-gap overvoltage protector.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives
  • R58

    SparkGapPulseSwitch

    Gas-discharge spark-gap device for high-voltage switching, pulse generation, or surge protection; specifications from Russian Spark Gap datasheet.

    Base
    Not recorded
    Socket
    Not recorded
    Heater
    Not recorded
    Sections
    1
    SpecificationsAlternatives