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Voltage Radio Detector Converter ·Pentode

6HZ6

Dual-control miniature pentode designed for FM sound-detector service in color and monochrome television receivers. Two independent control grids provide separate influence over plate current for specialized detection.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
7EN
Socket code
B7G
Base pins
7
Nominal heater
6.3 V / 450 mA

Description

Miniature type used as sound-detector tube in FM and color and black-and-white television receivers. Tube has two independent control grids. Outlines section, 5C; requires miniature 7-contact socket. Type 5HZ6 is identical with type 6HZ6 except for heater ratings.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

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

7EN - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN1G1AG1 — Control Grid

Chart transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 7EN

PIN2ISAIS — Internal ScreenGroup 7EN2

Chart transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 7EN

PIN2KAK — CathodeGroup 7EN2

Chart transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 7EN

PIN3H—H — Heater

Chart transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 7EN

PIN4H—H — Heater

Chart transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 7EN

PIN5PAP — Plate (Anode)

Chart transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 7EN

PIN6G2AG2 — Screen Grid

Chart transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 7EN

PIN7G3AG3 — Suppressor Grid

Chart transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 129, 7EN

Section ratings

1 physical section, each with unique specifications.

Section 1

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
110000 Ω
Transconductance
0.0034 S
Amplification factor
38
Max plate voltage
300 V
Max screen voltage
300 V
Max plate dissipation
1.7 W
Max screen dissipation
1 W

Published ratings/characteristics promoted from supplied datasheet.

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

1965 Westinghouse Data Book

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Heater Voltage

    6.3 V

  • Heater Current

    450 mA

  • Plate Resistance

    110000 ohm

  • Grid1 Transconductance

    3400 uS

  • Grid3 Transconductance

    600 uS

Other

  • Maximum Plate Voltage

    300 V

  • Maximum Plate Dissipation

    1.5 W

  • Maximum Grid3 Positive Voltage

    25 V

  • Maximum Grid3 Negative Voltage

    -100 V

  • Maximum Screen Supply Voltage

    300 V

  • Plate Voltage

    150 V

  • Screen Voltage

    100 V

Data set 02

1966 Tung Sol Electronic Tubes 2 of 4

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Plate supply voltage

    150 V

    ClassA1

  • Grid 2 supply voltage

    100 V

    ClassA1

  • Cathode resistor

    180 ohm

    ClassA1

  • Plate current

    3.2 mA

    ClassA1

  • Grid 2 current

    32 mA

    ClassA1

  • Grid 3 negative voltage rating

    100 V

    FM sound detector

  • Grid 3 positive voltage rating

    25 V

    FM sound detector

Characteristic

  • Grid 3 transconductance to plate

    600 µS

    ClassA1

  • Heater warm-up time

    11 s

    WholeTube

Data set 03

1971 RCA HB3 Binder 5 of 7

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Voltage (AC or DC)

    6.3 V

    Published table value column 1

  • Voltage (AC or DC)

    6.3 V

    Published table value column 2

  • Voltage (AC or DC)

    0.6 V

    Published table value column 3

  • Current

    450 mA

    Published table value column 1

  • Current

    30 mA

    Published table value column 2

  • Current

    450 mA

    Published table value column 3

  • Warm-up time (Average)

    11 s

    Published table value

  • respect to cathode

    200 V

    Published table value

  • Grid No.l to plate

    0 pF

    Published table value column 1

  • Grid No.l to plate

    23 pF

    Published table value column 2

  • Grid No.l to grid No

    3 pF

    Published table value column 1

  • Grid No.l to grid No

    0.09 pF

    Published table value column 2

  • Grid No

    3 pF

    Published table value column 1

  • Grid No

    1.6 pF

    Published table value column 2

  • Plate Supply Voltage

    150 V

    Published table value

  • Grid-No

    3 V

    Published table value column 1

  • Grid-No

    0 V

    Published table value column 2

  • Grid-No

    2 V

    Published table value column 1

  • Grid-No

    100 V

    Published table value column 2

  • Grid-No.l Supply Voltage

    0 V

    Published table value

  • Cathode Resistor

    180 Ω

    Published table value

  • Plate Current

    3.2 mA

    Published table value

  • Grid-No

    2 mA

    Published table value column 1

  • Grid-No

    3.2 mA

    Published table value column 2

  • for plate µa =

    20 V

    Published table value column 1

  • for plate µa =

    -4.5 V

    Published table value column 2

  • for plate µa =

    -7 V

    Published table value column 2

  • PLATE VOLTAGE

    300 V

    Published table value

  • GRID-No

    2 V

    Published table value column 1

  • GRID-No

    300 V

    Published table value column 2

  • GRID-No

    2 a

    Published table value

  • GRID-No

    3 W

    Published table value column 1

  • GRID-No

    0 W

    Published table value column 2

  • GRID-No

    1 W

    Published table value column 3

  • PLATE DISSIPATION

    1 W

    Published table value column 1

  • PLATE DISSIPATION

    7 W

    Published table value column 2

  • Grid-No

    3 MΩ

    Published table value column 1

  • Grid-No

    0.68 MΩ

    Published table value column 2

  • For cathode-bias operation

    0.47 MΩ

    Published table value

Characteristics

  • Plate Resistance (Approx )

    0.11 MΩ

    Published table value

Data set 04

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Heater Warm-up Time (Average)

    11 seconds

    Heater Warm-up Time (Average) 11 11 seconds

  • Grid No.l to Cathode, Heater, Grid No

    3

    Grid No.l to Cathode, Heater, Grid No.2, Grid No.3, and

  • Grid No

    2

    Grid No.3 to Cathode, Heater, Grid No.l, Grid No.2, Plate,

  • Plate Dissipation

    1.7 watts

    Plate Dissipation 1.7 watts

  • Grid-No

    0.1 watt

    Grid-No.3 Input 0.1 watt

  • Grid-No

    2

    Grid-No.2 Input:

  • Grid-No

    0.68 megohm

    Grid-No.3-Circuit Kesistance 0.68 megohm

  • Heater Warm-up Time (Average)

    11 seconds

    Heater Warm-up Time (Average) 11 11 seconds

  • Peak Heater-Cathode Voltage ±

    100 volts

    Peak Heater-Cathode Voltage ±100 max ±100 max volts

  • Plate Dissipation

    1.5 watts

    Plate Dissipation 1.5 watts

Capacitance

  • Grid No.l to Plate

    0.023

    Grid No.l to Plate 0.023 pP

  • Grid No.l to Grid No

    0.09 pF

    Grid No.l to Grid No.3 0.09 pF

  • Grid No

    1.6

    Grid No.3 to Plate 1.6 pP

  • Grid to Plate

    1.6 pF

    Grid to Plate 1.6 1.6 pF

  • Grid to Cathode and Heater

    2.6 pF

    Grid to Cathode and Heater 2.2 2.6 pF

  • Plate to Cathode and Heater (Unit No.l)

    1.6 pF

    Plate to Cathode and Heater (Unit No.l) ... 0.4 1.6 pF

  • Plate to Cathode and Heater (Unit No

    1 pF

    Plate to Cathode and Heater (Unit No.2) .... 0.4 1 pF

Characteristic

  • Plate Supply Voltage

    150 volts

    Plate Supply Voltage 150 volts

  • Grid-No

    0 volts

    Grid-No.3 Supply Voltage 0 volts

  • Grid-No

    100 volts

    Grid-No.2 Supply Voltage 100 volts

  • Grid-No.l Supply Voltage

    0 volts

    Grid-No.l Supply Voltage 0 volts

  • Plate Resistance (Approx.)

    0.11 megohm

    Plate Resistance (Approx.) 0.11 megohm

  • Transconductance, Grid No.l to Plate

    3400

    Transconductance, Grid No.l to Plate 3400 /imhos

  • Transconductance, Grid No

    600

    Transconductance, Grid No.3 to Plate 600 /xmhos

  • Plate Current

    3.2 mA

    Plate Current 3.2 mA

  • Grid-No

    3.2 mA

    Grid-No.2 Current 3.2 mA

  • Grid-No

    -7 volts

    Grid-No.3 Supply Voltage (Approx.) for plate current of 20 fiA -7 volts

  • Grid-No.l Supply Voltage (Approx.) for plate current of

    -4.6 volts

    Grid-No.l Supply Voltage (Approx.) for plate current of 20 /lA -4.6 volts

  • Plate Voltage

    300 volts

    Plate Voltage 300 volts

  • Grid-No

    3

    Grid-No.3 (Control-Grid) Voltage:

  • Grid-No

    300 volts

    Grid-No.2 (Screen-Grid) Supply Voltage 300 volts

  • Grid-No

    300

    Grid-No.2 Voltage See curve page 300

  • For grid-No

    1 volts

    For grid-No. 2 voltages up to 150 volts 1 watt

  • For grid-No

    300 volts

    For grid-No.2 voltages between 150 and 300 volts See curve page 300

  • Plate Voltage

    300 volts

    Plate Voltage 300 volts

  • Grid Voltage, Positive-bias value

    0 volts

    Grid Voltage, Positive-bias value 0 volts

  • Plate Voltage

    100 volts

    Plate Voltage 100 volts

  • Amplification Factor

    38

    Amplification Factor 38

  • Plate Resistance (Approx.)

    7100 ohms

    Plate Resistance (Approx.) 7100 ohms