Specialized - Switching Tube vacuum tubes

SurgeProtector

Subminiature flying-lead surge arrester designed for primary protection of 220 V AC apparatus against momentary low-energy surge voltages.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

ThermalDelaySwitch

Miniature thermal-delay switch designed to delay application of anode voltage to indirectly heated valves and mercury-vapor rectifiers, with a specified delay around 44–66 seconds at room temperature.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

ThermalDelaySwitch

Probable alternate rendering of the VLS631 miniature thermal-delay switch; no independent source artifact is presently attached, so the functional assignment follows the corresponding documented designation conservatively.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

CounterSelectorSwitch

Ten-way Trochotron beam-switching tube designed for electronic counting, sequencing, and commutation by steering an electron beam among multiple output positions.

Base

Not recorded

Socket

B26A

Heater

6.3 V

Sections

1

CounterSelectorSwitch

Ten-way Trochotron beam-switching tube designed for electronic counting, sequencing, and commutation by steering an electron beam among multiple output positions.

Base

Not recorded

Socket

B26A

Heater

6.3 V

Sections

1

CounterSelectorSwitch

Ten-way Trochotron beam-switching tube designed for electronic counting, sequencing, and commutation by steering an electron beam among multiple output positions.

Base

Not recorded

Socket

B26A

Heater

6.3 V

Sections

1

CounterSelectorSwitch

Ten-way Trochotron beam-switching tube designed for electronic counting, sequencing, and commutation by steering an electron beam among multiple output positions.

Base

Not recorded

Socket

B26A

Heater

6.3 V

Sections

1

MicrowaveTRSwitch

Broadband X-band TR gas-discharge cell for branched or balanced radar duplexers, specifically developed for high reliability and long life at substantial transmitter line power.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

MicrowaveTRSwitch

Broadband X-band TR gas-discharge cell for branched or balanced radar duplexers, designed for high reliability and long life at substantial transmitter line power.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

MicrowaveTRSwitch

Broadband X-band TR gas-discharge cell with separate DC and pre-pulse keep-alive electrodes, designed for branched or balanced radar duplexer systems.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

MicrowaveTRSwitch

Self-operating broadband X-band TR gas-discharge cell covering approximately 8.49–9.58 GHz for radar duplexers, equivalent to American type 1B63A.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Triode

Forced-air-cooled pulse power triode for amplifier and modulator-switch service. Approximately 25 kV plate capability and substantial dissipation support demanding high-voltage pulsed-power and switching applications.

Base

Not recorded

Socket

Not recorded

Heater

11 V

Sections

1

SurgeProtector

Inert-gas surge arrester with approximately 245 V nominal striking voltage, designed to protect telecommunication and signalling systems against lightning and earth-return overvoltages.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

SurgeProtector

Inert-gas surge arrester family designed to protect telecommunication and signalling systems against lightning, earth-return, and related transient overvoltages.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Cold-cathode noble-gas power switching tube for controlled DC, AC, and pulse switching. Heaterless discharge handles substantial switched current.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Cold-cathode mixed-gas power switching tube for controlled DC or AC service. Heaterless gas discharge provides substantial switching current.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Cold-cathode noble-gas power switching tube for controlled DC or AC service. Heaterless discharge provides high-current electronic switching.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

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

Thyratron

Cold-cathode trigger tube for welding timers, relay and counting circuits, and power switching. Heaterless gas discharge provides rapid control.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Cold-cathode trigger tube for on-off switching control. Gas discharge provides abrupt heaterless electronic switching.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Cold-cathode gas switching tube of the 5823 family. Available source material supports relay/control service without a narrower description.

Base

Not recorded

Socket

B7G

Heater

Not recorded

Sections

1

CounterSelectorSwitch

The Z656C is catalogued as a specialized electronic counter-selector switching tube. Such gas-discharge devices provide sequential switching or counting using controlled cathode discharges. Its precise electrode arrangement and electrical specifications require confirmation from a datasheet explicitly identifying Z656C rather than a similarly numbered type.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Cold-cathode gas switching tube. Available source material confirms heaterless discharge-switching construction without supporting a narrower application.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Cold-cathode gas switching tube. Available source material confirms heaterless discharge-switching construction without supporting a narrower application.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Subminiature cold-cathode trigger tube for counting and switching circuits. Heaterless gas discharge provides compact digital control.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Cold-cathode gas-discharge switching tube. Available source material confirms heaterless thyratron-type construction but does not establish a narrower application.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Cold-cathode gas-discharge switching tube. Available source material confirms heaterless thyratron-type construction but does not establish a narrower application.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

TriggerPulseSwitch

Cold-cathode trigger and pulse switching tube. Available source classification establishes gas-discharge trigger service without enough detail for a narrower operating description.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

TriggerPulseSwitch

Cold-cathode trigger and pulse switching tube. Available source classification establishes gas-discharge trigger service without enough detail for a narrower operating description.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

RelayControlSwitch

Cold-cathode relay and control switching tube. Available source classification establishes heaterless gas-discharge control service without enough detail for a narrower description.

Base

Not recorded

Socket

B7G

Heater

Not recorded

Sections

1

Thyratron

Cold-cathode negative-trigger tube for relay and switching operation from AC or DC supplies. Heaterless gas discharge provides abrupt electronic control.

Base

Not recorded

Socket

B9A

Heater

Not recorded

Sections

1

TriggerPulseSwitch

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

Base

Not recorded

Socket

B9A

Heater

Not recorded

Sections

1

Thyratron

Cold-cathode gas-discharge switching tube in a nine-pin miniature envelope. Available source material does not establish a narrower functional application.

Base

Not recorded

Socket

B9A

Heater

Not recorded

Sections

1

Thyratron

Cold-cathode gas-discharge switching tube in a nine-pin miniature envelope. Available source material does not establish a narrower functional application.

Base

Not recorded

Socket

B9A

Heater

Not recorded

Sections

1

TriggerPulseSwitch

The Z862E is a noble-gas-filled, cold-cathode electrometer discharge tube intended for extremely low-current control circuits. It is suitable for triggering from ionization chambers and other high-resistance sensing devices. Its discharge switching action provides electrical control without a heated cathode.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

RelayControlSwitch

The Z863X is a noble-gas-filled cold-cathode relay-control tube developed for DC switching, counting, and relay circuits. It uses a negative triggering-electrode potential to initiate conduction. The device provides gas-discharge switching in specialized industrial and electronic-control equipment.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

RelayControlSwitch

The Z865W is a cold-cathode, noble-gas-filled relay tube designed for DC and AC control applications. Its relatively low triggering-voltage requirement allows interfacing with transistorized circuits. The tube is intended for relay switching, counting, and related industrial electronic-control functions.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

TriggerPulseSwitch

Cold-cathode trigger tube for pulse and control circuits. Gas ionization provides abrupt heaterless switching in response to a trigger condition.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

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

Base

MINIATURE

Socket

B7G

Heater

Not recorded

Sections

1

SwitchingOther

The ZA1002 is a cold-cathode, neon-filled subminiature switching and light-emitting diode. It provides a stable difference between ignition and sustaining voltages, allowing low-speed electronic switching and counting. Its visible red discharge can be used with photosensitive components in optical control circuits.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

SwitchingOther

The ZA1004 is a subminiature cold-cathode neon indicator diode designed for visible electrical readout and control. Its rod-shaped molybdenum cathode and surrounding gauze anode produce a red glow discharge. It can operate with low-voltage transistor control circuitry and photosensitive components.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

SwitchingOther

The ZA1006 is a long-life neon-filled switching and light diode designed for electronic touch-control applications. Its stable ignition and maintaining-voltage separation supports capacitive-control circuitry, including electronic radio and television tuners. The compact cold-cathode construction offers resistance to shock and vibration.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

RelayControlSwitch

Subminiature cold-cathode glow-relay tube with two equivalent starter electrodes and auxiliary anode for counting, multivibrator, and relay-control circuits.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Gas-filled cold-cathode trigger tube with molybdenum cathode and electrical priming. Priming improves reliable, repeatable switching.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Ruggedized cold-cathode trigger tube with high light output for shift-register displays, combining electronic switching with visible indication.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

Thyratron

Subminiature cold-cathode trigger tube for very-high-peak-current capacitor-discharge switching. Heaterless gas discharge provides compact pulse-power control.

Base

Not recorded

Socket

Not recorded

Heater

Not recorded

Sections

1

CounterSelectorSwitch

High-speed cold-cathode decade counting, display, and switching tube. Sequential gas-discharge transfer performs decimal counting while providing direct visual indication.

Base

Special 13-pin

Socket

B13B

Heater

Not recorded

Sections

1

CounterSelectorSwitch

Cold-cathode decade counting, display, and switching tube supporting bidirectional counting. Sequential gas-discharge transfer provides electronic counting and visible indication.

Base

Special 13-pin

Socket

B13B

Heater

Not recorded

Sections

1