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Voltage Pentode - Remote Cutoff (single) ·Pentode

6BD6

Remote-cutoff miniature pentode designed for gain-controlled radio-frequency and intermediate-frequency amplification in receiving equipment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B7G
Base pins
7
Nominal heater
6.3 V / 300 mA

Description

Remote-cutoff miniature pentode for radio-frequency and intermediate-frequency amplification.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B7G
Base pins
7
Nominal heater voltage
6.3 V
Nominal heater current
300 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
180000 Ω
Transconductance
0.00235 S
Max plate voltage
250 V
Max screen voltage
125 V
Max plate dissipation
2.5 W
Max screen dissipation
0.5 W
Max cathode current
14 mA
Rectifier max heater-cathode voltage
200 V

Published promoted fields populated semantically; identical repeated sections compressed where applicable.

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

Pentode

Characteristic

  • Heater Voltage. . 6.3 Volts

    6.3 V

    Heater Voltage. . 6.3 Volts

  • Heater Current. . 300 Ma

    300 mA

    Heater Current. . 300 Ma

  • Plate Voltage . . .. . .. ..o 100 250 Volts

    250 V

    Plate Voltage . . .. . .. ..o 100 250 Volts

  • Supressor Grid Voltage2 e 0 0 Volts

    0 V

    Supressor Grid Voltage2 e 0 0 Volts

  • Screen Grid Voltage. . . . . . . . . . 100 100 Volts

    100 V

    Screen Grid Voltage. . . . . . . . . . 100 100 Volts

  • Control Grid Voltage e e e -1 -3 Volts

    -3 V

    Control Grid Voltage e e e -1 -3 Volts

  • Plate Current . . e 13 9 Ma

    9 mA

    Plate Current . . e 13 9 Ma

  • Screen Current. . . . . . . . . . . . 5 3.5 Ma

    3.5 mA

    Screen Current. . . . . . . . . . . . 5 3.5 Ma

  • Plate Resistance . . . . . . . . . . . 012 0.7 Megohm

    0.7 Megohm

    Plate Resistance . . . . . . . . . . . 012 0.7 Megohm

  • Control Grid Voltage for gm — 10 ;Lmhos ) -35 Volts

    -35 V

    Control Grid Voltage for gm — 10 ;Lmhos ) -35 Volts

Other

  • Plate Voltage . . 300 Volts Max.

    300 V

    Plate Voltage . . 300 Volts Max.

  • Screen Voltage . . 125 Volts Max.

    125 V

    Screen Voltage . . 125 Volts Max.

  • Screen Dissipation . 0.4 Watts Max.

    0.4 W

    Screen Dissipation . 0.4 Watts Max.

  • Cathode Current . 14 Ma Max.

    14 mA

    Cathode Current . 14 Ma Max.

Data set 02

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Plate voltage

    250 V

    ClassA; OperatingPoint1

  • Screen voltage

    100 V

    ClassA; OperatingPoint1

  • Control-grid bias

    3 V

    ClassA; OperatingPoint1

  • Plate current

    9 mA

    ClassA; OperatingPoint1

  • Screen current

    3 mA

    ClassA; OperatingPoint1

  • Plate resistance

    800000 ohm

    ClassA; OperatingPoint1

  • Transconductance

    2000 uS

    ClassA; OperatingPoint1

  • Plate voltage

    100 V

    ClassA; OperatingPoint2

  • Screen voltage

    100 V

    ClassA; OperatingPoint2

  • Control-grid bias

    1 V

    ClassA; OperatingPoint2

  • Plate current

    13 mA

    ClassA; OperatingPoint2

  • Screen current

    5 mA

    ClassA; OperatingPoint2

  • Plate resistance

    150000 ohm

    ClassA; OperatingPoint2

  • Transconductance

    2550 uS

    ClassA; OperatingPoint2

Data set 03

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

  • Plate Resistance

    180000 ohm

    Typical

  • Transconductance

    2350 uS

    Typical

Data set 04

1966 Tung Sol Electronic Tubes 1 of 4

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Plate voltage

    250 V

    RFIFAmplifier

  • Screen voltage

    100 V

    RFIFAmplifier

  • Plate current

    10 mA

    RFIFAmplifier

  • Screen current

    4 mA

    RFIFAmplifier

  • Application

    Remote-cutoff RF/IF amplifier

    Section1

Characteristic

  • Plate resistance

    1000000 Ω

    Section1

  • Transconductance

    3300 µS

    Section1