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Rectifier - Damper Diode ·Rectifier

6AX4GTB

Glass-octal high-voltage half-wave rectifier for color and monochrome television horizontal-deflection damping, with higher peak-inverse capability than earlier 6AX4 variants.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
4CG
Socket code
IO
Base pins
5
Nominal heater
6.3 V / 1.2 A

Description

Glass-octal half-wave damper rectifier for color and monochrome television horizontal deflection. It is a high-voltage half-wave vacuum rectifier intended for CRT horizontal-deflection damper service.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
4CG
Socket code
IO
Base pins
5
Nominal heater voltage
6.3 V
Nominal heater current
1.2 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

4CG - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN1IC—IC

EIA chart transcription; independent manufacturer corroboration pending

Unverified

EIA Base Connections, printed page 127, 4CG

PIN2IC—IC

EIA chart transcription; independent manufacturer corroboration pending

Unverified

EIA Base Connections, printed page 127, 4CG

PIN3KAK — Cathode

EIA chart transcription; independent manufacturer corroboration pending

Unverified

EIA Base Connections, printed page 127, 4CG

PIN5PAP — Plate (Anode)

EIA chart transcription; independent manufacturer corroboration pending

Unverified

EIA Base Connections, printed page 127, 4CG

PIN7H—H — Heater

EIA chart transcription; independent manufacturer corroboration pending

Unverified

EIA Base Connections, printed page 127, 4CG

PIN8H—H — Heater

EIA chart transcription; independent manufacturer corroboration pending

Unverified

EIA Base Connections, printed page 127, 4CG

Section ratings

1 physical section, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances
Max plate dissipation
5.3 W
Rectifier peak inverse voltage
5000 V
Rectifier nominal output current
165 mA
Rectifier peak forward current
1 A
Rectifier forward voltage drop
32 V
Rectifier max heater-cathode voltage
5000 V
Rectifier warm-up time
11 s

Damper-diode PIV/current data are preserved as parameters; rectifier-specific promoted fields are not used because the source explicitly says power-rectifier operation is not recommended.

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

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Heater voltage

    6.3 V

  • Heater current

    1.2 A

Data set 02

1965 Sylvania Electronic Tubes Vol3

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristics

  • Heater voltage

    6.3 V

  • Heater current

    1.2 A

  • Forward voltage drop

    32 V

    At specified plate current

Other

  • Peak inverse voltage

    5000 V

  • Peak plate current

    1000 mA

  • DC plate current

    165 mA

  • Plate dissipation

    5.3 W

  • Heater negative to cathode total DC plus peak

    5000 V

  • Heater positive to cathode total DC plus peak

    300 V

Data set 03

1966 Tung Sol Electronic Tubes 1 of 4

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Peak inverse plate voltage maximum

    5000 V

    TVDamper

  • Plate dissipation maximum

    6 W

    TVDamper

  • Steady-state peak plate current maximum

    1200 mA

    TVDamper

  • DC output current maximum

    200 mA

    TVDamper

  • Application

    Horizontal-deflection damping diode in television receivers

    Section1

Characteristic

  • Tube voltage drop

    25 V

    SpecifiedPlateCurrent

Data set 04

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Peak Inverse Plate Voltage

    5000 V

  • Steady State Peak Plate Current

    1 A

  • DC Output Current

    165 mA

  • HeaterCathodeVoltageHeaterPositiveDC

    100 V

  • HeaterCathodeVoltageHeaterPositiveTotalDCPeak

    300 V

  • HeaterCathodeVoltageHeaterNegativeDC

    900 V

  • HeaterCathodeVoltageHeaterNegativeTotalDCPeak

    5000 V

Characteristic

  • Tube Voltage Drop

    32 V

    PlateCurrent=250mA

Capacitance

  • Cathode To Plate And Heater Capacitance

    8.5 pF

  • Plate To Cathode And Heater Capacitance

    5 pF

  • Heater To Cathode Capacitance

    40 pF

Data set 05

1971 RCA HB3 Binder 4 of 7

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Heater voltage nominal

    6.3 V

  • Heater current

    1.2 A

  • Peak inverse plate voltage

    5000 V

    DamperService

  • Peak plate current

    1000 mA

    DamperService

  • DC plate current

    165 mA

    DamperService

  • Plate dissipation

    5.3 W

    DamperService

Characteristics

  • Tube voltage drop at 250 mA

    32 V

    DamperService

Data set 06

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Capacitance

  • Cathode-to-plate and heater capacitance

    8.5 pF

  • Plate-to-cathode and heater capacitance

    5 pF

  • Heater-to-cathode capacitance

    4 pF

Other

  • Peak inverse plate voltage

    5000 V

    DamperService

  • Peak plate current

    1000 mA

    DamperService

  • Average plate current

    165 mA

    DamperService

  • Plate dissipation

    5.3 W

    DamperService

  • Tube voltage drop

    32 V

    DamperService