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Tube Tinker — Electron Tube Database
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Tuning Indicator ·TuningIndicator

4662

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

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
-

Description

Neon tuning indicator with auxiliary-anode striking system.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
-
Nominal heater voltage
-
Nominal heater current
-
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Tuning Indicator

X-ray radiationInterelectrode capacitances
Max screen voltage
400 V
Max screen dissipation
8 W

UHF power amplifier beam-power tube

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1938 Philips Miniwatt Vacuum Tube Catalog

Published operating points and test conditions from this source.

SECTION 1

Tuning Indicator

Characteristic

  • Auxiliary-anode striking voltage

    165 to 190 V

Other

  • Main-anode operating voltage

    150 to 170 V

    FullyLightedCathode

  • Main-anode current

    2 mA

    FullyLightedCathode

  • Auxiliary-anode current

    40 to 50 uA

    FullyLightedCathode

Data set 02

1957 Philips Receiving and Amplifying Tubes

Published operating points and test conditions from this source.

SECTION 1

Tuning Indicator

Characteristics

  • Auxiliary-anode striking voltage minimum

    165 V

  • Auxiliary-anode striking voltage maximum

    190 V

Other

  • Anode current maximum

    2 mA

Data set 03

1963 Philips Electron Tubes Handbook V2

Published operating points and test conditions from this source.

SECTION 1

Tuning Indicator

Characteristic

  • Auxiliary-anode striking voltage

    165 to 190 V

Other

  • Principal-anode operating voltage

    150 to 170 V

    FullyLightedCathode

  • Principal-anode current

    2 mA

    FullyLightedCathode

  • Auxiliary-anode current

    40 to 50 uA

    FullyLightedCathode

Data set 04

1971 RCA HB3 Binder 6 of 7

Published operating points and test conditions from this source.

SECTION 1

Tuning Indicator

Other

  • Maximum DC Plate Voltage

    2200 V

    UHF power amplifier

  • Maximum DC Screen Voltage

    400 V

    UHF power amplifier

  • Maximum DC Plate Current

    300 mA

    UHF power amplifier

  • Plate Dissipation

    400 W

    UHF power amplifier

  • Screen Dissipation

    8 W

    UHF power amplifier

  • Typical Plate Voltage at 470 MHz

    2000 V

    UHF power amplifier

  • Typical Screen Voltage at 470 MHz

    200 V

    UHF power amplifier

  • Typical Plate Current at 470 MHz

    300 mA

    UHF power amplifier

  • Useful Power Output at 470 MHz

    300 W

    UHF power amplifier

Characteristics

  • Mu Factor

    12

    UHF power amplifier

  • Grid-No.1 to Plate Capacitance

    0.15 pF

    UHF power amplifier

  • Grid-No.1 to Cathode Capacitance

    16 pF

    UHF power amplifier

  • Grid-No.2 to Plate Capacitance

    7 pF

    UHF power amplifier