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Voltage - Dual Triode (similar) ·Triode-Triode

6SN7GTA

Medium-mu twin triode for general-purpose amplification and television vertical oscillator or amplifier service. Its two identical sections provide moderate gain and voltage capability useful in audio drivers as well as television sweep circuitry.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
8BD
Socket code
IO
Base pins
8
Nominal heater
6.3 V / 600 mA

Description

The Westinghouse 6SN7GTA is a medium-mu twin triode for television vertical oscillator/amplifier service and general-purpose amplification.

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
600 mA
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
6700 Ω
Transconductance
0.003 S
Amplification factor
20
Max plate voltage
450 V
Max plate dissipation
5 W
Max cathode current
20 mA

Published promoted fields populated from printed headings; identical repeated sections compressed.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
6700 Ω
Transconductance
0.003 S
Amplification factor
20
Max plate voltage
450 V
Max plate dissipation
5 W
Max cathode current
20 mA

Second identical physical section; added to align physical rows with SectionCount.

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

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Triode

Application

  • Service

    Horizontal multivibrator / phase inverter / vertical deflection

Data set 02

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum plate voltage

    450 V

    Published handbook rating

  • Plate voltage

    250 V

    ClassA OperatingPoint1

  • Control-grid bias

    8 V

    ClassA OperatingPoint1

  • Plate current

    9 mA

    ClassA OperatingPoint1

  • Plate voltage

    90 V

    ClassA OperatingPoint2

  • Control-grid bias

    0 V

    ClassA OperatingPoint2

  • Plate current

    10 mA

    ClassA OperatingPoint2

Characteristic

  • Plate resistance

    7700 ohm

    ClassA OperatingPoint1

  • Transconductance

    2600 µS

    ClassA OperatingPoint1

  • Amplification factor

    20

    ClassA OperatingPoint1

  • Plate resistance

    6700 ohm

    ClassA OperatingPoint2

  • Transconductance

    3000 µS

    ClassA OperatingPoint2

  • Amplification factor

    20

    ClassA OperatingPoint2

  • Heater voltage

    6.3 V

    Published heater rating

  • Heater current

    600 mA

    Published heater rating

Data set 03

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Plate Resistance

    7700 ohm

    AlternateOperatingPoint

  • Transconductance

    2600 uS

    AlternateOperatingPoint

Data set 04

1965 Sylvania Electronic Tubes Vol3

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Plate voltage

    250 V

    EachSection

  • Plate current

    9 mA

    EachSection

  • Transconductance

    2600 uS

    EachSection

  • Amplification factor

    20 ratio

    EachSection

Other

  • Peak positive plate voltage

    1500 V

    VerticalDeflection

Data set 05

1965 Westinghouse Data Book

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater Voltage

    6.3 V

  • Heater Current

    600 mA

  • Grid-Plate Capacitance

    4 pF

    Section1Representative

  • Input Capacitance

    2.2 pF

    Section1Representative

  • Output Capacitance

    0.1 pF

    Section1Representative

Other

  • Maximum Plate Voltage

    450 V

    ClassA

  • Maximum Peak Positive Plate Voltage

    1500 V

    VerticalDeflection

  • Maximum Peak Negative Grid Voltage

    -250 V

    VerticalDeflection

  • Maximum Plate Dissipation

    5 W

    EachSection

  • Maximum Both-Plate Dissipation

    7.5 W

    BothSections

  • Maximum Cathode Current

    20 mA

    EachSection

  • Maximum Peak Cathode Current

    70 mA

    VerticalDeflection

Data set 06

1971 RCA HB3 Binder 5 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Voltage

    63 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • ,,..* Current — published value 1

    0 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • ,,..* Current — published value 2

    6 A

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Grid to plate — published value 1

    4

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Grid to plate — published value 2

    3.8

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Grid to cathode and heater — published value 1

    2.2

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Grid to cathode and heater — published value 2

    2.6

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Fl ate to cathode and heater — published value 1

    0.7

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Fl ate to cathode and heater — published value 2

    0.7

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • elate Voltage — published value 1

    90 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • elate Voltage — published value 2

    250 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Grid Voltage — published value 1

    0 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Grid Voltage — published value 2

    -8 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Plate Resistance (Approx.) — published value 1

    6700 ohm

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Plate Resistance (Approx.) — published value 2

    7700 ohm

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Transconductance — published value 1

    3000

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Transconductance — published value 2

    2600

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Plate Current — published value 1

    10 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Plate Current — published value 2

    9 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • voltage of -12.5 volts — published value 1

    -12.5 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • voltage of -12.5 volts — published value 2

    1 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • voltage of -12.5 volts — published value 3

    3 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • current of 10 µamp — published value 1

    10 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • current of 10 µamp — published value 2

    -7 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • current of 10 µamp — published value 3

    -18 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Pin 1 -Grid of — published value 1

    1

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Pin 1 -Grid of — published value 2

    5

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Pin 2 -Plate of — published value 1

    2

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Pin 2 -Plate of — published value 2

    6

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Pin 3 -Cathode of — published value 1

    3

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Pin 3 -Cathode of — published value 2

    7

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Unit No.2

    8

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Pin 4 -Grid of

    4

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • This rating is aDOlitaDle where the du ration 01 Lhe voltage Dul se does

    1 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • 8 Tnis rating is aDplicaDle where the duration of the voltage pulse does

    8 V

    Pulse

Other

  • PLATE VOLTAGE

    450 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • CATHODE CURRENT

    20 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Either plate

    5 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Both plates (Both units operating)

    7.5 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Heater negative with respect to cathode

    200 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Heater positive with respect to cathode

    200 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • For fixed-bias operation

    1 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • DC PLATE VOLTAGE

    450 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • PEAK NEGATIVE-PULSE GRID VOLTAGES

    600 V

    Pulse

  • (ither plate

    5 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Both plates (Both units operating)

    7.5 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • Heater negative with respect to cathode

    200 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • cathode-bias operation

    2.2 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • PEAK NEGATIVE-PULSE~GRID VOLTAGE~~

    400 V

    Pulse

  • cathode-bias operation

    2.2 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • PEAK NEGATIVE-PULSE GRID VOLTAGE

    250 V

    Pulse

  • Heater positive with respect to cathode 200 max

    200 V

    Published datasheet value; multiple values represent separate source-table limits or conditions.

  • For cathode-bias operation

    2.2 mA

    Published datasheet value; multiple values represent separate source-table limits or conditions.