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Voltage Radio Detector Converter ·Pentode-Triode

5HB7

Combined triode-pentode used as an oscillator and mixer or frequency converter in television or VHF communications receivers.

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

Description

Miniature type used as combined oscillator and mixer B (T//-L- tube in color and black-and-white television receivers G ip utilizing an intermediate frequency in the order of 40 MHz. Outlines section, 6B; requires miniature 9- k,G3 ,is contact socket. Type 5HB7 is identical with type 6HB7 p except for heater ratings. 9QA 5HB7 6HB7

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
-
Socket code
B9A
Base pins
9
Nominal heater voltage
4.7 V
Nominal heater current
600 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

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
5000 Ω
Transconductance
0.0085 S
Amplification factor
40
Max plate voltage
330 V
Max plate dissipation
2.5 W

Published ratings/characteristics promoted from supplied source; additional conditions retained in parameter table.

Section 2

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
200000 Ω
Transconductance
0.0064 S
Max plate voltage
330 V
Max screen voltage
330 V
Max plate dissipation
3.1 W
Max screen dissipation
0.55 W

Published ratings/characteristics promoted from supplied source; additional conditions retained in parameter table.

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

1964 RMA EIA

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater Voltage

    4.7 V

  • Heater Current

    450 mA

  • EquivalentElectricalType

    6HB7

    ExceptHeater

  • TriodeGridToPlateCapacitance

    1.9 pF

  • Triode Input Capacitance

    3 pF

  • TriodeOutputCapacitance

    1.9 pF

  • TriodeTransconductance

    8500 uS

  • TriodePlateResistance

    5000 ohm

Other

  • TriodePlateVoltage

    150 V

    ClassA

  • TriodePlateCurrent

    18 mA

    ClassA

SECTION 2

Pentode

Characteristic

  • EquivalentElectricalType

    6HB7

    ExceptHeater

  • PentodeGridToPlateCapacitanceMaximum

    0.01 pF

  • Pentode Input Capacitance

    5 pF

  • Pentode Output Capacitance

    3.4 pF

  • PentodeTransconductance

    6400 uS

  • PentodePlateResistance

    200000 ohm

Other

  • PentodePlateVoltage

    125 V

    ClassA

  • PentodeScreenVoltage

    125 V

    ClassA

  • PentodePlateCurrent

    12 mA

    ClassA

  • PentodeScreenCurrent

    4 mA

    ClassA

Data set 02

1965 Westinghouse Data Book

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Triode typical plate voltage

    150 V

  • Heater-cathode voltage maximum

    200 V

Characteristics

  • Triode transconductance

    8500 uS

  • Triode amplification factor

    40

  • Triode plate resistance

    5000 ohm

  • Heater warm-up time

    11 s

Application

  • Application

    Oscillator / phase inverter / vertical oscillator

Capacitance

  • Triode grid-to-plate capacitance

    1.9 pF

SECTION 2

Pentode

Other

  • Pentode/tetrode typical plate voltage

    125 V

  • Pentode/tetrode grid2 voltage

    125 V

Characteristics

  • Pentode/tetrode transconductance

    6400 uS

  • Pentode/tetrode plate resistance

    200000 ohm

Application

  • Application

    Mixer / IF / video / general-purpose amplifier

Capacitance

  • Pentode grid1-to-plate capacitance maximum

    0.01 pF

Data set 03

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • DC Grid-No.l Voltage

    55 volts

    Published value from supplied target entry

  • Peak Negative-Pulse Grid-No.l Voltage

    330 volts

    Published value from supplied target entry

  • Peak Cathode Current

    800 mA

    Published value from supplied target entry

  • Average Cathode Current

    230 mA

    Published value from supplied target entry

  • Grid-No

    3.5 watts

    Published value from supplied target entry

  • Grid-No.l-Circuit Resistance

    1 megohm

    Published value from supplied target entry

  • Heater Voltage (ac/dc)

    6.3 volts

    Published value from supplied target entry

  • Heater Current

    0.45 ampere

    Published value from supplied target entry

  • Heater Warm-up Time (Average)

    11 seconds

    Published value from supplied target entry

  • Plate Voltage

    330 volts

    Published value from supplied target entry

  • Grid-No

    330 volts

    Published value from supplied target entry

  • Grid-No

    300

    Published value from supplied target entry

  • Plate Dissipation

    3.1 watts

    Published value from supplied target entry

  • Grid-No

    2

    Published value from supplied target entry

  • For grid-No

    165 volts

    Published value from supplied target entry

  • For grid-No

    300 volts

    Published value from supplied target entry

  • Plate Supply Voltage

    125 volts

    Published value from supplied target entry

  • Grid-No

    125 volts

    Published value from supplied target entry

  • Grid-No.l Supply Voltage

    -1 volts

    Published value from supplied target entry

  • Amplification Factor

    40

    Published value from supplied target entry

  • Plate Resistance (Approx.)

    0.2 megohm

    Published value from supplied target entry

  • Transconductance

    6400

    Published value from supplied target entry

  • Plate Current

    12 mA

    Published value from supplied target entry

  • Grid-No

    4 mA

    Published value from supplied target entry

  • Grid-No

    1

    Published value from supplied target entry

Capacitance

  • Grid to Plate

    1.9 pF

    Published value from supplied target entry

  • Grid to Cathode, Heater, Pentode Grid No

    3 pF

    Published value from supplied target entry

  • Plate to Cathode, Heater, Pentode Grid No

    1.9 pF

    Published value from supplied target entry

  • Plate to Cathode, Heater, Grid No

    3

    Published value from supplied target entry

  • Heater to Cathode'

    3.8 pF

    Published value from supplied target entry