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Power - TV Vertical Output ·Triode-Triode

6BX7GT

Dual triode intended for television vertical-deflection service, combining oscillator/driver and power-output functions where applicable. Manufacturer data emphasize vertical-sweep operation, pulse-voltage capability, and the stronger section’s current and dissipation requirements.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
8BD
Socket code
IO
Base pins
8
Nominal heater
6.3 V / 1.5 A

Description

6BX7GT is a DualTriode device. High-perveance twin triode for vertical-deflection amplifier and oscillator service in television receivers.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
8BD
Socket code
IO
Base pins
8
Nominal heater voltage
6.3 V
Nominal heater current
1.5 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

8BD - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN12G1BG1 — Control Grid

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8BD

PIN22PBP — Plate (Anode)

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8BD

PIN32KBK — Cathode

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8BD

PIN41G1AG1 — Control Grid

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8BD

PIN51PAP — Plate (Anode)

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8BD

PIN61KAK — Cathode

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8BD

PIN7H—H — Heater

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8BD

PIN8H—H — Heater

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8BD

Section ratings

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
1300 Ω
Transconductance
0.0075 S
Amplification factor
10
Max plate voltage
500 V
Max plate dissipation
10 W
Max cathode current
60 mA

Each section; representative row.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
1300 Ω
Transconductance
0.0075 S
Amplification factor
10
Max plate voltage
500 V
Max plate dissipation
10 W
Max cathode current
60 mA

Identical second physical Triode section; duplicated from representative section per physical-section-row policy.

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

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum plate voltage

    500 V

    Published handbook rating

  • Plate voltage

    250 V

    ClassA

  • Plate current

    42 mA

    ClassA

  • Maximum positive pulse plate voltage

    2000 V

    VerticalDeflection

  • Maximum plate dissipation

    12 W

    VerticalDeflection

  • Maximum DC cathode current

    60 mA

    VerticalDeflection

Characteristic

  • Heater voltage

    6.3 V

    Published heater rating

  • Heater current

    1.5 A

    Published heater rating

Data set 02

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate Voltage

    250 V

    Published operating/characteristic table

  • Grid Voltage

    40 V

    Published operating/characteristic table

  • Cathode Resistor

    390 ohm

    Published operating/characteristic table

Characteristic

  • Plate Current

    42 mA

    Published operating/characteristic table

  • Transconductance

    7600 uS

    Published operating/characteristic table

  • Amplification Factor

    10

    Published operating/characteristic table

  • Plate Resistance

    1300 ohm

    Published operating/characteristic table

Data set 03

1966 Tung Sol Electronic Tubes 1 of 4

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    250 V

    EachUnit

  • Plate current

    42 mA

    EachUnit

Characteristic

  • Transconductance

    7700 uS

    EachUnit

  • Amplification factor

    10

    EachUnit

  • Plate resistance

    1.3 kOhm

    EachUnit

Data set 04

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Peak Positive Pulse Plate Voltage

    2000 V

    AbsoluteMaximum

  • TotalPlateDissipationBothPlates

    12 W