Electronic tube and vacuum tube catalog

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Socket code

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Electrical Summary

Heater	1.5 V / 95 mA

Sections

1

High-reliability Russian electron-light indicator designed to display voltage level in semiconductor circuitry and compact electronic equipment.

Base

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Socket code

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Electrical Summary

Heater	1.4 V / 25 mA
Plate	90 V / 0.025 W
Ik max	0.3 mA

Sections

1

Directly heated subminiature low-power tuning indicator for battery-operated or mains-powered radio receivers.

Base

SDN

Socket code

Refer to variations

Electrical Summary

Heater	1.4 V / 25 mA
Plate	90 V / 0.045 W
Ik max	0.3 mA

Sections

1

8 pins

Electron-ray visual indicator for receiver tuning or electrical level indication, using a fluorescent display whose pattern changes with control voltage.

Base

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Socket code

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Electrical Summary

Heater	1.4 V / 25 mA
Plate	90 V

Sections

1

Electron-ray visual indicator for receiver tuning or electrical level indication, using a fluorescent display whose pattern changes with control voltage.

Base

Refer to variations

Socket code

Refer to variations

Electrical Summary

Heater	1.4 V / 25 mA
Plate	300 V / 0.045 W
Ik max	0.3 mA

Sections

1

8 pins

Electron-ray visual indicator for receiver tuning or electrical level indication, using a fluorescent display whose pattern changes with control voltage.

Base

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Socket code

B4

Electrical Summary

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Sections

1

B4 - European 4-pin base

Neon gas-discharge visual indicator for receiver tuning or electrical level indication, using controlled glow rather than a conventional fluorescent electron-ray target.

Base

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Socket code

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Electrical Summary

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Sections

1

Neon gas-discharge visual indicator for receiver tuning or electrical level indication, using controlled glow rather than a conventional fluorescent electron-ray target.

Base

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Socket code

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Electrical Summary

Screen	400 V / 8 W

Sections

1

Neon gas-discharge visual indicator for receiver tuning or electrical level indication, using controlled glow rather than a conventional fluorescent electron-ray target.

Base

Subminiature wire-leaded

Socket code

B5D

Electrical Summary

Heater	1 V / 30 mA
Plate	65 V
Ik max	0.75 mA
gm	0.45 mA/V
μ	30

Sections

1

5 pins - B5D - Subminiature wire-ended

Subminiature directly heated voltage-indicator tube, DM160/6977, designed to show the switching state of flip-flop and logic circuits with a visible luminous strip.

Base

7AG

Socket code

B7

Electrical Summary

Heater	6.3 V / 150 mA
Plate	150 V

Sections

1

8 pins - B7 - Medium 7-contact

Double-diode tuning indicator providing visual receiver indication through changes in fluorescent shadow angle.

Base

7AG

Socket code

IO

Electrical Summary

Heater	6.3 V / 150 mA
Plate	135 V
Ik max	2 mA

Sections

1

8 pins - IO - International Octal

Cathode-ray tuning indicator with two independently controlled shadow angles on a circular fluorescent screen.

Base

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Socket code

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Electrical Summary

Heater	6.3 V / 300 mA

Sections

1

Twin-shadow electron-ray tuning indicator.

Base

B8-6

Socket code

IO

Electrical Summary

Heater	6.3 V / 150 mA

Sections

1

8 pins - IO - International Octal

Electron-ray indicator designed especially for precise visual tuning of AM/FM radio receivers.

Base

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Socket code

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Electrical Summary

Heater	6.3 V / 300 mA

Sections

1

Base

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Socket code

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Electrical Summary

Heater	6.3 V / 580 mA
Plate	250 V / 0.4 W

Sections

1

Russian 6E2P electron-ray tuning indicator for FM receiver visual tuning, with fluorescent display and 6.3 V 580 mA heater.

Base

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Socket code

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Electrical Summary

Heater	6.3 V / 250 mA
Plate	300 V / 0.5 W

Sections

1

Russian 6E3P fluorescent electron-ray indicator for stereo tape-recorder visual tuning and level indication, with 6.3 V 250 mA heater.

Base

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Socket code

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Electrical Summary

Heater	6.3 V / 300 mA

Sections

1

Base

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Socket code

IO

Electrical Summary

Heater	6.3 V / 300 mA
Plate	250 V

Sections

1

8 pins - IO - International Octal

Russian indirectly heated electron-beam tuning indicator used to display receiver tuning or signal strength. Its fluorescent display and control-electrode response provide a visible indication rather than conventional tetrode voltage amplification.

Base

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Socket code

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Electrical Summary

Heater	6.3 V / 300 mA

Sections

1

Base

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Socket code

OCTAL7

Electrical Summary

Heater	6.3 V / 300 mA

Sections

1

OCTAL7 - 7-contact octal-family base

Electron-ray tuning indicator for visual receiver tuning and signal-level indication through a fluorescent display.

Base

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Socket code

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Electrical Summary

Heater	0.7 V / 35 mA
Plate	65 V
Ik max	0.75 mA
μ	22

Sections

1

4 pins

Long-life directly heated end-view indicator triode producing blue-green light proportional to plate current for compact visual electrical-level indication.

Base

Subminiature wire-leaded

Socket code

B4D

Electrical Summary

Heater	1 V / 30 mA
Plate	65 V
Ik max	0.75 mA
μ	5

Sections

1

B4D - Subminiature wire-ended

Directly heated subminiature voltage indicator designed for visual indication of flip-flop state and other low-power logic conditions.

Base

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Socket code

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Electrical Summary

Heater	1.4 V / 25 mA
Plate	135 V
Screen	135 V

Sections

1

Low-filament-power electronic tuning indicator developed for battery-operated receivers, providing fluorescent visual tuning indication with minimal heater consumption.

Base

Subminiature

Socket code

B9A

Electrical Summary

Heater	1.4 V / 25 mA
Plate	90 V / 0.045 W
Ik max	0.3 mA

Sections

1

8 pins - B9A - Small-button Noval 9-contact

Miniature directly heated tuning indicator for visual tuning and signal-level indication in low-power battery-operated receivers.

Base

Subminiature

Socket code

Refer to variations

Electrical Summary

Heater	1.4 V / 25 mA
Plate	90 V / 0.045 W
Ik max	0.3 mA

Sections

1

8 pins

Subminiature directly heated electron-ray indicator for compact battery receivers, providing visual signal-strength or tuning indication with very low filament consumption.

Base

Refer to variations

Socket code

B9A

Electrical Summary

Heater	6.3 V / 300 mA

Sections

1

B9A - Small-button Noval 9-contact

Tuning and modulation indicator combining a fluorescent display with an integral diode for rectifying the indication voltage in radio and monitoring equipment.

Base

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Socket code

B9A

Electrical Summary

Heater	6.3 V / 300 mA
Plate	250 V
Ik max	5 mA

Sections

1

B9A - Small-button Noval 9-contact

Fluorescent tuning and modulation indicator for visual receiver tuning and modulation-level monitoring in radio and signal-monitoring equipment.

Base

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Socket code

B9A

Electrical Summary

Heater	6.3 V / 300 mA
Plate	300 V / 0.5 W
Ik max	8 mA

Sections

1

B9A - Small-button Noval 9-contact

Dual-bar electronic tuning and level indicator with two fluorescent display bars for comparative or simultaneous visual monitoring.

Base

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Socket code

B9A

Electrical Summary

Heater	6.3 V / 270 mA
Plate	300 V / 0.5 W
Ik max	2 mA

Sections

1

B9A - Small-button Noval 9-contact

Miniature tuning indicator with a luminous vertical target strip deposited on the glass envelope for compact visual tuning and signal-level indication.

Base

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Socket code

B9A

Electrical Summary

Heater	6.3 V / 270 mA

Sections

1

B9A - Small-button Noval 9-contact

Magic-band fluorescent tuning indicator for receiver tuning and signal-level display, with luminous-band width varying in response to applied control voltage.

Base

Refer to variations

Socket code

B9A

Electrical Summary

Heater	6.3 V / 300 mA

Sections

1

B9A - Small-button Noval 9-contact

Electron-ray tuning indicator of the EM71/EM85 family, providing a fluorescent visual pattern that varies with receiver control voltage for tuning and signal-level indication.

Base

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Socket code

B5

Electrical Summary

Heater	1.3 A
Plate	115 V
rP	1,000 Ω

Sections

1

B5 - European 5-pin base

OSRAM fluorescent visual tuning indicator designed to convert receiver control-voltage changes into an easily observed indication for accurate station tuning.

Base

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Socket code

B5

Electrical Summary

Heater	1.3 A
Plate	115 V
rP	100,000 Ω

Sections

1

B5 - European 5-pin base

OSRAM fluorescent visual tuning indicator for radio receivers, converting signal-derived control voltage into a visible response for accurate tuning.

Base

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Socket code

B4

Electrical Summary

Heater	4 V / 3 A
Rectifier	250 mA

Sections

1

B4 - European 4-pin base

Directly heated OSRAM fluorescent visual tuning indicator for receiver tuning, providing a visible response to changing control conditions.

Base

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Socket code

B4

Electrical Summary

Plate	0 V

Sections

1

B4 - European 4-pin base

Indirectly heated OSRAM fluorescent visual tuning indicator for radio receivers, with display appearance varying according to the applied control signal.

Base

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Socket code

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Electrical Summary

Heater	1.5 V / 100 mA

Sections

1

Single-character vacuum-fluorescent alphanumeric indicator displaying digits, letters, and a decimal point with green-emitting anode segments.

Base

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Socket code

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Electrical Summary

Heater	1.5 V / 100 mA

Sections

1

Single-character vacuum-fluorescent indicator displaying digits and letters using green-emitting segmented anodes viewed through the side of a miniature envelope.

Base

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Socket code

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Electrical Summary

Heater	1.5 V / 100 mA

Sections

1

Single-character vacuum-fluorescent multi-symbol indicator displaying digits, Cyrillic and Latin letters, commas, and other signs with green luminous segments.

Base

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Socket code

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Electrical Summary

Heater	1.5 V / 100 mA

Sections

1

Flat nine-position vacuum-fluorescent segmented indicator for displaying digits and signs, with separate grids controlling each green-emitting position.

Base

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Socket code

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Electrical Summary

Heater	4 V / 500 mA
Plate	250 V

Sections

1

Cathode-ray fluorescent tuning indicator designed to convert receiver signal-derived control voltage into a visible response for accurate tuning.

Base

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Socket code

IO

Electrical Summary

Heater	9 V / 200 mA
Plate	200 V

Sections

1

IO - International Octal

Cathode-ray fluorescent tuning indicator designed for visual receiver tuning, translating changing control voltage into an easily observed display.

Base

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Socket code

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Electrical Summary

Heater	9 V / 200 mA
Plate	200 V

Sections

1

Cathode-ray fluorescent tuning indicator for radio receivers, translating changing signal-derived control voltage into a visible tuning response.

Base

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Socket code

B4

Electrical Summary

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Sections

1

B4 - European 4-pin base

Cossor neon tuning indicator using a gas-discharge luminous display to provide visible receiver tuning response as applied control conditions change.

Base

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Socket code

B4

Electrical Summary

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Sections

1

B4 - European 4-pin base

Visual tuning indicator designed for receiver alignment and tuning, converting changing electrical control conditions into an easily observed luminous response.

Base

—

Socket code

IO

Electrical Summary

Heater	12.6 V / 100 mA

Sections

1

IO - International Octal

Series-heater electron-ray tuning indicator incorporating two display systems of different sensitivity for useful indication across weak and strong signal conditions.

Base

Refer to variations

Socket code

B9A

Electrical Summary

Heater	19 V / 100 mA
Plate	250 V / 0.2 W
Ik max	10 mA

Sections

1

B9A - Small-button Noval 9-contact

Series-heater fluorescent tuning indicator designed for AM receivers, providing visible tuning accuracy and received-signal indication.

Base

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Socket code

B9A

Electrical Summary

Heater	19 V / 100 mA

Sections

1

B9A - Small-button Noval 9-contact

Series-heater fluorescent tuning indicator for receiver applications, controlled by signal-derived voltage to provide an operator-visible aid to accurate tuning.

Base

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Socket code

B9A

Electrical Summary

Heater	19 V / 100 mA

Sections

1

B9A - Small-button Noval 9-contact

Magic-fan fluorescent tuning indicator for series-heater receiver equipment, producing a fan-shaped display that varies with control voltage.

Base

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Socket code

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Electrical Summary

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Sections

1

Cold-cathode neon indicator lamp for low-current visual indication service, with published striking voltage, operating current, and capacitance.

Base

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Socket code

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Electrical Summary

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Sections

1

Cold-cathode neon indicator lamp variant for low-current visual indication service, with published striking voltage, operating current, and capacitance.