Skip to main content
Tube Tinker — Electron Tube Database
Alternatives & variationsDownload PDF datasheet

Voltage Radio Detector Converter ·Tetrode

6BN6

Gated-beam tube combining limiter, discriminator, and audio-voltage amplification for television intercarrier-sound and FM receiver circuits.

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

Description

Beam tube used as a combined limiter, discriminator, and audio-voltage amplifier in intercarrier television and FM receivers.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
7DF
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

7DF - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN1ISAIS — Internal ScreenGroup 7DF1

Source-transcribed; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 129, 7DF

PIN1KAK — CathodeGroup 7DF1

Source-transcribed; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 129, 7DF

PIN2G1AG1 — Control Grid

Source-transcribed; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 129, 7DF

PIN3H—H — Heater

Source-transcribed; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 129, 7DF

PIN4H—H — Heater

Source-transcribed; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 129, 7DF

PIN5G2AG2 — Screen Grid

Source-transcribed; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 129, 7DF

PIN6G3AG3 — Suppressor Grid

Source-transcribed; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 129, 7DF

PIN7PAP — Plate (Anode)

Source-transcribed; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 129, 7DF

Section ratings

1 physical section, each with unique specifications.

Section 1

Tetrode

X-ray radiationInterelectrode capacitances
Plate resistance
5400 Ω
Max plate voltage
300 V
Max screen voltage
110 V
Max cathode current
13 mA

Gated-beam discriminator.

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

Tetrode

Characteristic

  • Signal input voltage

    1.25 V

    RMS

Other

  • Plate voltage

    285 V

    FMLimiterDiscriminator

  • Screen voltage

    100 V

    FMLimiterDiscriminator

  • Plate current

    0.45 mA

    FMLimiterDiscriminator

  • Screen current

    9.8 mA

    FMLimiterDiscriminator

  • Grid resistor

    330000 Ω

    FMLimiterDiscriminator

Data set 02

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • InputSignalCenterFrequency

    10.7 MHz

    LimiterDiscriminator

  • FrequencyDeviation

    75 kHz

    LimiterDiscriminator

  • PeakAudioOutputVoltage

    16.8 V

    LimiterDiscriminator;270V supply

Data set 03

1965 Sylvania Electronic Tubes Vol3

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Characteristics

  • Heater voltage

    6.3 V

  • Heater current

    300 mA

Other

  • Maximum plate supply voltage

    300 V

  • Maximum accelerator voltage

    100 V

  • Maximum positive limiter-grid voltage

    55 V

  • Maximum total cathode current

    11.5 mA

  • Intermediate frequency

    10.7 MHz

  • Peak audio output voltage

    16.8 V

  • Total harmonic distortion

    1.8 %

Data set 04

1966 Tung Sol Electronic Tubes 1 of 4

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Capacitance

  • Grid 1 capacitance

    4.2 pF

  • Grid 5 capacitance

    3.3 pF

  • Grid1-to-grid3 capacitance

    - to 0.004 pF

    Maximum

Other

  • Input-signal center frequency

    10.7 MHz

    LimiterDiscriminator

  • Plate supply voltage

    285 V

    LimiterDiscriminator

  • Plate voltage

    122 V

    LimiterDiscriminator

  • Accelerator voltage

    100 V

    LimiterDiscriminator

  • Cathode-bias resistor

    200 to 400 ohm

    LimiterDiscriminator

Data set 05

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • Maximum Plate Supply Voltage

    330 V

  • MaximumAcceleratorVoltage

    110 V

  • Typical Plate Voltage

    122 V

    LimiterDiscriminator

Data set 06

1971 RCA HB3 Binder 4 of 7

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Characteristics

  • Voltage (AC or DC) — published value 1

    6.3 V

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

  • Voltage (AC or DC) — published value 2

    10 V

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

  • Current at 6.3 volts — published value 1

    6.3 V

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

  • Current at 6.3 volts — published value 2

    0.3 V

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

  • grid No.2, and heater

    4.2

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

  • grid No.1, and heater

    3.3

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

  • Pin 1 -Cathode, — published value 1

    1

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

  • Pin 1 -Cathode, — published value 2

    4

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

  • Internal

    5

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

  • Shields

    6

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

  • Pin 2 -Grid No.1 — published value 1

    2

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

  • Pin 2 -Grid No.1 — published value 2

    7

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

  • Pin 3 —Heater

    3

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

  • Plate Supply Voltage — published value 1

    270 V

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

  • Plate Supply Voltage — published value 2

    85 V

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

  • Plate Supply Voltage — published value 3

    285 V

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

  • Plate Voltage — published value 1

    121 V

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

  • Plate Voltage — published value 2

    63 V

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

  • Plate Voltage — published value 3

    122 V

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

  • Grid-No.2 Voltage — published value 1

    100 V

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

  • Grid-No.2 Voltage — published value 2

    55 V

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

  • Grid-No.2 Voltage — published value 3

    100 V

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

  • Resistance* — published value 1

    200 ohm

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

  • Resistance* — published value 2

    400 ohm

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

  • Resistance* — published value 3

    200 ohm

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

  • Resistance* — published value 4

    400 ohm

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

  • Peak AF Output Voltage — published value 1

    16.8 V

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

  • Peak AF Output Voltage — published value 2

    6 V

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

  • Peak AF Output Voltage — published value 3

    16.6 V

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

  • Plate Current — published value 1

    0.44 mA

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

  • Plate Current — published value 2

    0.25 mA

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

  • Plate Current — published value 3

    0.49 mA

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

  • Grid-No.2 Current — published value 1

    10 mA

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

  • Grid-No.2 Current — published value 2

    4.1 mA

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

  • Grid-No.2 Current — published value 3

    9.8 mA

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

  • Plate Load Resistor — published value 1

    0.33 ohm

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

  • Plate Load Resistor — published value 2

    0.085 ohm

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

  • Plate Load Resistor — published value 3

    0.33 ohm

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

Other

  • Grid No.1 to grid No 3 — published value 1

    3 mA

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

  • Grid No.1 to grid No 3 — published value 2

    0 mA

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

  • Grid No.1 to grid No 3 — published value 3

    4 mA

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

  • PLATE SUPPLY VOLTAGE

    330 V

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

  • GRID-No.2 (ACCELERATOR-GRID) VOLTAGE

    110 V

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

  • CATHODE CURRENT

    13 mA

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

Data set 07

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • Plate Current

    9 mA

    Published in approved 6KS6 target datasheet entry; Section1

  • Grid-Circuit Resistance

    0.5 MΩ

    Published in approved 6KS6 target datasheet entry; Section1

  • Heater Voltage (ac/dc) 3.15 4.2 6.3

    12.6 V

    Published in approved 6KS6 target datasheet entry; Section1

  • Heater Current 0.6 0.45 0.3

    150 mA

    Published in approved 6KS6 target datasheet entry; Section1

  • age) 11

    11 seconds

    Published in approved 6KS6 target datasheet entry; Section1

  • Plate-Supply Voltage

    330 V

    Published in approved 6KS6 target datasheet entry; Section1

  • Grid-No.2 Voltage

    110 V

    Published in approved 6KS6 target datasheet entry; Section1

  • Grid-No. 1 Voltage, Positive peak value

    60 V

    Published in approved 6KS6 target datasheet entry; Section1

  • Cathode Current

    13 mA

    Published in approved 6KS6 target datasheet entry; Section1

  • Heater Voltage (ac/dc) 6.3

    8.4 V

    Published in approved 6KS6 target datasheet entry; Section1

  • Heater Current 0.6

    450 mA

    Published in approved 6KS6 target datasheet entry; Section1

  • Heater Warm-up Time (Average) 11

    11 seconds

    Published in approved 6KS6 target datasheet entry; Section1

  • Plate Voltage

    330 V

    Published in approved 6KS6 target datasheet entry; Section1

  • Grid Voltage —1

    -3 V

    Published in approved 6KS6 target datasheet entry; Section1

  • Plate Resistance (Approx.) 21000

    28000 Ω

    Published in approved 6KS6 target datasheet entry; Section1

  • 3600

    2600 µS

    Published in approved 6KS6 target datasheet entry; Section1

  • Plate Current 1.6

    1.6 mA

    Published in approved 6KS6 target datasheet entry; Section1

  • Grid Voltage (Approx.) for plate current of 10 /iA —2.6

    -5.5 V

    Published in approved 6KS6 target datasheet entry; Section1

  • Peak

    54 mA

    Published in approved 6KS6 target datasheet entry; Section1

Capacitance

  • Internal Shield

    3.3 pF

    Published in approved 6KS6 target datasheet entry; Section1

  • Triode Grid to Triode Plate

    2.6 pF

    Published in approved 6KS6 target datasheet entry; Section1

  • Triode Grid to Cathode and Heater

    3.6 pF

    Published in approved 6KS6 target datasheet entry; Section1

  • Triode Plate to Cathode and Heater

    0.26 pF

    Published in approved 6KS6 target datasheet entry; Section1

  • Diode Cathode to All Other Electrodes (Each Diode Unit)

    5 pF

    Published in approved 6KS6 target datasheet entry; Section1

  • Diode Plate to Diode Cathode and Heater (Each Diode Unit)

    1.9 pF

    Published in approved 6KS6 target datasheet entry; Section1

  • Diode Cathode to Diode Plate and Heater (Each Diode Unit)

    4.8 pF

    Published in approved 6KS6 target datasheet entry; Section1

  • Diode Plate to All Other Electrodes (Each Diode Unit)

    3 pF

    Published in approved 6KS6 target datasheet entry; Section1