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Voltage - Dual Triode (similar) ·Triode-Triode

6GU7

Medium-mu twin triode for television matrixing, phase-inverter, multivibrator, and general amplifier applications, with two similar sections and relatively substantial plate-dissipation capability.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
9LP
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 600 mA

Description

Medium-mu twin triode for television matrixing, phase-inverter, multivibrator, and general amplifier applications. Explicit heater variant/co-designation of 8GU7 in the approved source.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
9LP
Socket code
B9A
Base pins
9
Nominal heater voltage
6.3 V
Nominal heater current
600 mA
Parallel heater voltage
6.3 V
Parallel heater current
600 mA
Series capable
Yes

9LP - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
5500 Ω
Transconductance
0.0031 S
Amplification factor
17
Max plate voltage
330 V
Max plate dissipation
3 W

Representative identical-section row.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
5500 Ω
Transconductance
0.0031 S
Amplification factor
17
Max plate voltage
330 V
Max plate dissipation
3 W

Second identical physical triode section; added to align 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

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Heater voltage

    6.3 V

  • Heater current

    600 mA

  • Plate voltage

    330 V

    Typical operating conditions

  • Plate current

    1.5 mA

    Typical operating conditions

Data set 02

1965 Sylvania Electronic Tubes Vol3

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Plate resistance

    5500 ohm

  • Transconductance

    3100 uS

  • Amplification factor

    17

Other

  • Maximum plate voltage

    330 V

  • Maximum plate dissipation

    3 W

  • Heater voltage

    6.3 V

  • Heater current

    600 mA

  • Typical plate voltage

    250 V

  • Typical grid voltage

    -10.5 V

  • Typical plate current

    11.5 mA

  • Grid cutoff bias

    -23 V

Data set 03

1966 Tung Sol Electronic Tubes 2 of 4

Published operating points and test conditions from this source.

SECTION 1

Triode

Capacitance

  • Grid-to-plate capacitance

    2 pF

  • Input capacitance

    2.2 pF

  • Output capacitance

    1.2 pF

Other

  • Plate voltage

    250 V

    ClassA1

  • Plate current

    11.5 mA

    ClassA1

  • Grid voltage

    -8.5 V

    ClassA1

Data set 04

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Typical Plate Voltage

    250 V

Capacitance

  • Section1GridToPlateCapacitance

    3.6 pF

    Section1

  • Section2GridToPlateCapacitance

    3.8 pF

    Section2

Data set 05

1971 RCA HB3 Binder 5 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate voltage

    250 V

    ClassA

  • Plate current

    11.5 mA

    ClassA

  • Maximum plate voltage

    330 V

  • respect to cathode

    200 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • respect to cathode

    200 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • PLATE VOLTAGE

    330 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Positive—bias value

    0 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • PLATE DISSIPATION

    3 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • For fixed—bias operation

    1 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

Characteristics

  • Plate resistance

    5500 ohm

    ClassA

  • Transconductance

    3100 uS

    ClassA

  • Amplification factor

    17

    ClassA

  • Voltage (AC or DC) — published value 1

    6.38 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Voltage (AC or DC) — published value 2

    6.3 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Voltage (AC or DC) — published value 3

    0.6 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Current — published value 1

    0.6 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Current — published value 2

    0.04 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Current — published value 3

    0.6 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Warm-up time (Average)

    11

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Grid to plate — published value 1

    3 pF

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Grid to plate — published value 2

    3 pF

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Grid to cathode and heater — published value 1

    3.4 pF

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Grid to cathode and heater — published value 2

    3.6 pF

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate to cathode and heater — published value 1

    0.44 pF

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate to cathode and heater — published value 2

    0.34 pF

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate Voltage

    250 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Grid Voltage

    -10.5 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate Resistance (Approx )

    5500 ohm

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Transconductance

    3100

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate Current

    11.5 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate Current for grid volts = -14 — published value 1

    -14 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate Current for grid volts = -14 — published value 2

    4 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Grid Voltage (Approx.) for plate µa = 50 — published value 1

    50 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Grid Voltage (Approx.) for plate µa = 50 — published value 2

    -23 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 1 —Plate of — published value 1

    1

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 1 —Plate of — published value 2

    6

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 2 —Grid of — published value 1

    2

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 2 —Grid of — published value 2

    7

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 3 —Cathode of — published value 1

    3

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 3 —Cathode of — published value 2

    8

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 4 —Heater — published value 1

    4

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 4 —Heater — published value 2

    9

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 5 —Heater

    5

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

Data set 06

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Heater Warm-up Time (Average)

    11 s

    Other;PublishedValue1

  • Heater Warm-up Time (Average)

    11 s

    Other;PublishedValue2

  • Peak value

    200 V

    Other;PublishedValue1

  • Peak value

    200 V

    Other;PublishedValue2

  • Average value

    100 V

    Other;PublishedValue1

  • Average value

    100 V

    Other;PublishedValue2

  • Plate Voltage

    330 V

    MaximumRating

  • Grid Voltage, Positive-bias value

    0 V

    MaximumRating

  • Plate Dissipation

    3 W

    MaximumRating

  • Maximum Plate Voltage

    330 V

    Section1

  • Maximum Plate Dissipation

    3 W

    Section1

Capacitance

  • Grid to Plate

    3 pF

    Capacitance;PublishedValue1

  • Grid to Plate

    3 pF

    Capacitance;PublishedValue2

  • Grid to Cathode and Heater

    3.4 pF

    Capacitance;PublishedValue1

  • Grid to Cathode and Heater

    3.6 pF

    Capacitance;PublishedValue2

  • Plate to Cathode and Heater

    0.44 pF

    Capacitance;PublishedValue1

  • Plate to Cathode and Heater

    0.34 pF

    Capacitance;PublishedValue2

  • Plate of Unit No.l to Plate of Unit No

    2 pF

    Capacitance;PublishedValue1

  • Plate of Unit No.l to Plate of Unit No

    1 pF

    Capacitance;PublishedValue2

Characteristic

  • Plate Voltage

    250 V

    Characteristic

  • Grid Voltage

    -10.5 V

    Characteristic

  • Plate Resistance (Approx.)

    5500 ohm

    Characteristic

  • Transconductance

    3100 uS

    Characteristic

  • Plate Resistance

    5500 ohm

    Section1

  • Transconductance

    3100 uS

    Section1

  • Amplification Factor

    17

    Section1