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Voltage Radio Detector Converter ·Heptode

5750

Industrial pentagrid converter for oscillator and mixer service in communications and specialized receiving equipment. Its multi-grid construction provides frequency conversion with high plate resistance and conventional 6.3 V heater operation.

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

Description

Pentagrid converter equivalent-family type to 6BE6 for frequency-changer service.

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

Heptode

X-ray radiationInterelectrode capacitances
Plate resistance
1000000 Ω
Transconductance
0.000475 S
Max plate voltage
300 V
Max screen voltage
100 V
Max plate dissipation
1 W
Max screen dissipation
1 W
Max cathode current
14 mA
Rectifier max heater-cathode voltage
90 V

Pentagrid-converter values; conversion transconductance promoted.

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

1960 RCA Industrial and Communications Types

Published operating points and test conditions from this source.

SECTION 1

Heptode

CrossReference

  • Prototype / equivalent family

    6BE6

Application

  • Application

    Pentagrid converter / frequency changer

Data set 02

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Heptode

Other

  • Plate Voltage

    250 V

    ConverterService

  • Screen Voltage

    100 V

    ConverterService

  • Oscillator Grid Voltage RMS

    10 V

    SeparateExcitation

Characteristic

  • Oscillator Transconductance

    7800 uS

    SeparateExcitation

  • Oscillator Amplification Factor

    20

    SeparateExcitation

  • Plate Current

    2.6 mA

    ConverterService

Data set 03

1971 RCA HB3 Binder 3 of 7

Published operating points and test conditions from this source.

SECTION 1

Heptode

Characteristics

  • 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.

  • trodes (Oscillator input)

    5.5

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

  • Grid No.1 to cathode & grid No.5

    3

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

  • Cathode 6 grid No.S to all other

    6

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

  • electrodes except grid No 1 — published value 1

    1

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

  • electrodes except grid No 1 — published value 2

    15

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

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

    1

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

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

    5

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

  • Pin 2 -Cathode, — published value 1

    2

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

  • Pin 2 -Cathode, — published value 2

    6

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

  • Pin 2 -Cathode, — published value 3

    2

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

  • Pin 3 -Heater — published value 1

    3

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

  • Pin 3 -Heater — published value 2

    7

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

  • Pin 4 —Heater

    4

    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.

  • Plate Voltage — published value 1

    100 V

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

  • Plate Voltage — published value 2

    250 V

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

  • Grids-No.2 & No.4 Voltage — published value 1

    100 V

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

  • Grids-No.2 & No.4 Voltage — published value 2

    100 V

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

  • Grid-No.3 Voltage — published value 1

    -1.5 V

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

  • Grid-No.3 Voltage — published value 2

    -1.5 V

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

  • Voltage — published value 1

    10 V

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

  • Voltage — published value 2

    10 V

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

  • Grid-No.l Resistor — published value 1

    20000 ohm

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

  • Grid-No.l Resistor — published value 2

    20000 ohm

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

  • Plate Resistance (Approx.) — published value 1

    0.4 Mohm

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

  • Plate Resistance (Approx.) — published value 2

    1 Mohm

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

  • Conversion Transconductance — published value 1

    455

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

  • Conversion Transconductance — published value 2

    475

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

  • Plate Current — published value 1

    2.6 mA

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

  • Plate Current — published value 2

    2.6 mA

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

  • Grids-No.2 ~ No.4 Current — published value 1

    7.5 mA

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

  • Grids-No.2 ~ No.4 Current — published value 2

    7.5 mA

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

  • Grid-No.1 Current — published value 1

    0.5 mA

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

  • Grid-No.1 Current — published value 2

    0.5 mA

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

  • Total Cathode Current — published value 1

    10.6 mA

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

  • Total Cathode Current — published value 2

    10.6 mA

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

  • Plate & Grids-No.2 & No.4 Voltage

    100 V

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

  • Grid-No.3 Voltage

    0 V

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

  • Oscillator Transconductance

    7800

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

  • Cathode Current

    25 mA

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

  • plate µa. = 10 — published value 1

    10 V

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

  • plate µa. = 10 — published value 2

    -17 V

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

  • Between grid No.i and grids xo.2 8 No.JF connec tetl to plate

    8

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

  • a frequency of 25 cycles per second

    25

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

  • Under the fol lowing conditions: heater volts = 7.5 cycled

    7.5 V

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

  • one minute on and one minute off, heater 135 volts positive

    135 V

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

Other

  • Grid No.3 to plate

    0.3 mA

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

  • Grid No.3 to grid No.l

    0.15 mA

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

  • PLATE VOLTAGE

    330 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.

  • SUPPLY VOLTAGE

    330 V

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

  • GRIDS-No.2 3 No.4 VOLTAGE — published value 1

    3 V

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

  • GRIDS-No.2 3 No.4 VOLTAGE — published value 2

    110 V

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

  • TOTAL CATHODE CURRENT

    15.5 mA

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

  • GRIDS-No.2 & No.4 INPUT

    1.1 mA

    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.