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Voltage - Dual Triode (similar high frequency) ·Triode-Triode

6111

Subminiature high-mu twin triode intended for UHF amplification, combining two compact triode sections for high-frequency electronic equipment where small size is important.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
8DG
Socket code
SUBMINIATURE8
Base pins
8
Nominal heater
6.3 V / 300 mA

Description

The 6111 is a subminiature medium-mu twin triode with independent sections for general-purpose amplification and combined oscillator/mixer service in high-frequency circuits.

Socket description

Subminiature 8-lead base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
8DG
Socket code
SUBMINIATURE8
Base pins
8
Nominal heater voltage
6.3 V
Nominal heater current
300 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

8DG - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN12PBP — Plate (Anode)

EIA source transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8DG

PIN22G1BG1 — Control Grid

Original EIA label 2G1; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8DG

PIN3H—H — Heater

Original EIA label H; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8DG

PIN42KBK — Cathode

Original EIA label 2K; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8DG

PIN51KAK — Cathode

Original EIA label 1K; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8DG

PIN6H—H — Heater

Original EIA label H; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8DG

PIN71G1AG1 — Control Grid

Original EIA label 1G1; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8DG

PIN81PAP — Plate (Anode)

Original EIA label 1P; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 8DG

Section ratings

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
4000 Ω
Transconductance
0.005 S
Amplification factor
20
Max plate voltage
165 V
Max plate dissipation
0.95 W
Max cathode current
22 mA
Rectifier max heater-cathode voltage
200 V

Representative row for two electrically identical triode sections; TUBE.SectionCount remains 2.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
4000 Ω
Transconductance
0.005 S
Amplification factor
20
Max plate voltage
165 V
Max plate dissipation
0.95 W
Max cathode current
22 mA

Second physical triode restored under current one-row-per-physical-section 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

1940 RCA

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater or filament voltage

    6.3 V

    Published nominal value

  • Heater or filament current

    300 mA

    Published nominal value

  • Transconductance

    5000 µS

    Published operating characteristic

  • Amplification factor

    20

    Published operating characteristic

Other

  • Maximum plate dissipation

    1.1 W

    Published maximum rating

  • Maximum altitude

    60000 ft

    Full ratings without pressurization

  • Application

    VHF amplifier and oscillator

    Published

Data set 02

1958 Compagnie General

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater Voltage

    6.3 V

  • Heater Current

    300 mA

  • Grid-to-Plate Capacitance

    1.5 pF

    Each section; without shield

  • Input Capacitance

    1.9 pF

    Each section; without shield

Data set 03

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum plate voltage

    165 V

    Published handbook rating

  • Plate voltage

    100 V

    ClassA

  • Plate current

    8.5 mA

    ClassA

Characteristic

  • Plate resistance

    4000 ohm

    Published handbook characteristic

  • Transconductance

    5000 µS

    Published handbook characteristic

  • Amplification factor

    20

    Published handbook characteristic

  • Heater/filament voltage

    6.3 V

    Published heater/filament rating

  • Heater/filament current

    300 mA

    Published heater/filament rating

Data set 04

1960 RCA Industrial and Communications Types

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Heater Voltage

    6.3 V

  • Heater Current

    300 mA

Data set 05

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • ImpactAcceleration

    450 g

  • FatigueAcceleration

    2.5 g

  • AltitudeRating

    60000 ft

  • Service

    General-purpose amplifier or oscillator-mixer

Data set 06

1966 Tung Sol Electronic Tubes 4 of 4

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Grid-to-plate capacitance each section

    1.5 pF

    WholeTube

  • Input capacitance each section

    2.9 pF

    WholeTube

  • Grid-to-grid capacitance maximum

    0.011 pF

    WholeTube

  • Plate-to-plate capacitance maximum

    0.5 pF

    WholeTube

Other

  • Maximum plate voltage

    165 V

    WholeTube

  • Maximum negative DC grid voltage

    55 V

    WholeTube

  • Maximum plate dissipation

    0.95 W

    WholeTube

  • Maximum DC plate current

    22 mA

    WholeTube

  • Maximum DC grid current

    5.5 mA

    WholeTube

  • Maximum heater-cathode voltage

    200 V

    WholeTube

  • Plate voltage

    100 V

    ClassA1

  • Cathode-bias resistor

    220 ohm

    ClassA1

  • Amplification factor

    20

    ClassA1

  • Plate resistance

    4000 ohm

    ClassA1

  • Transconductance

    5000 uS

    ClassA1

  • Plate current

    8.5 mA

    ClassA1

  • Grid voltage at 10 uA plate current

    -9 V

    ClassA1

Data set 07

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • HeaterOrFilamentVoltageNominal

    6.3 V

  • HeaterOrFilamentCurrentNominal

    300 mA

  • Maximum Plate Voltage

    165 V

  • Maximum Plate Dissipation

    0.95 W

  • Maximum Cathode Current

    22 mA

  • Typical Plate Voltage

    100 V

    ClassA;EachSection

  • TypicalCathodeBiasResistance

    220 Ohm

    ClassA;EachSection

  • Typical Plate Current

    8.5 mA

    ClassA;EachSection

  • MaximumGridCurrentEachGrid

    5.5 mA

  • Maximum Heater Cathode Voltage

    200 V

    EitherPolarity

  • MaximumGridCircuitResistance

    1.1 MOhm

  • TypicalGridVoltage

    -9 V

    IbApprox10uA

  • LifeExpectancyAt30C

    5000 h

  • LifeExpectancyAt175C

    1000 h

Characteristic

  • Plate Resistance

    4000 Ohm

  • Transconductance

    5000 uS

  • Amplification Factor

    20

Capacitance

  • Grid To Plate Capacitance

    1.4 pF

    EachSection;WithShield

  • Input Capacitance

    2.1 pF

    EachSection;WithShield

  • Output Capacitance Section1

    1.3 pF

    WithShield

  • Output Capacitance Section2

    1.4 pF

    WithShield

  • GridToGridCapacitanceMaximum

    0.01 pF

  • PlateToPlateCapacitanceMaximum

    0.3 pF

Data set 08

1971 RCA HB3 Binder 3 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Iatended for applications at altitudes up to 60,000 feet where — published value 1

    60 ft

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

  • Iatended for applications at altitudes up to 60,000 feet where — published value 2

    0 ft

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

  • Voltage

    6.3 V

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

  • Current

    300 mA

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

  • Grid to plate (Each unit) — published value 1

    1.5

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

  • Grid to plate (Each unit) — published value 2

    1.4

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

  • Plate—Supply Voltage

    100 V

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

  • Plate Resistance (Approx )

    4000 ohm

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

  • Transconductance

    5000 uS

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

  • Plate Current

    8.5 mA

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

  • Lead 1 —Plate of — published value 1

    1

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

  • Lead 1 —Plate of — published value 2

    5

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

  • Lead 2 —Grid of — published value 1

    2

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

  • Lead 2 —Grid of — published value 2

    6

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

  • Unit No.2

    7

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

  • Lead 3 —Heater

    3

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

  • Lead 4 —Cathode of — published value 1

    4

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

  • Lead 4 —Cathode of — published value 2

    8

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

  • For operation at altitudes uq to 60,000 feet — published value 1

    60 ft

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

  • For operation at altitudes uq to 60,000 feet — published value 2

    0 ft

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

  • Positive bias value

    0 V

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

  • Negative bias value

    55 V

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

  • Heater negative with respect to cathode

    200 V

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

  • Heater Current — published value 1

    1 mA

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

  • Heater Current — published value 2

    280 mA

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

  • Heater Current — published value 3

    320 mA

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

  • Grid to plate — published value 1

    2

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

  • Grid to plate — published value 2

    1.2

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

  • Grid to plate — published value 3

    1.8

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

  • Grid to cathode and heater — published value 1

    2

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

Other

  • PLATE VOLTAGE

    165 V

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

  • PLATE DISSIPATION

    1.1 mA

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

  • Heater positive with respect to cathode

    200 V

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

  • For cathode—bias operation — published value 1

    1 mA

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

  • For cathode—bias operation — published value 2

    2 mA

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