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Power - Pentode (NOT beam) ·Pentode-Triode

10GN8

Miniature triode-pentode for television receivers. The triode serves sync-separator, sync-clipper, phase-inverter, or sound-IF functions, while the pentode provides video-output amplification.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
9DX
Socket code
B9A
Base pins
9
Nominal heater
10.5 V / 450 mA

Description

Miniature type used in color and black-and-white tele- @fff^ rfEfl\f) P vision receiver applications. Triode unit is used as : , y[[7~" r T} . sync-separator, sync-clipper, phase inverter, or sound- CT(£\j^\ J/^sjp if amplifier. Pentode unit is used in output stage of Qj" video amplifier. Outlines section, 6E; requires minia- Kt Pp ture 9-contact socket. For

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
9DX
Socket code
B9A
Base pins
9
Nominal heater voltage
10.5 V
Nominal heater current
450 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

9DX - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN12KBK — Cathode

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DX

PIN22G1BG1 — Control Grid

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DX

PIN32PBP — Plate (Anode)

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DX

PIN4H—H — Heater

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DX

PIN5H—H — Heater

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DX

PIN61G3AG3 — Suppressor GridGroup 9DX6

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DX

PIN6ISAIS — Internal ScreenGroup 9DX6

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DX

PIN61KAK — CathodeGroup 9DX6

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DX

PIN71G1AG1 — Control Grid

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DX

PIN81G2AG2 — Screen Grid

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DX

PIN91PAP — Plate (Anode)

EIA transcription; manufacturer confirmation pending

Unverified

EIA Base Connections, printed page 131, 9DX

Section ratings

2 physical sections, each with unique specifications.

Section 1

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
60000 Ω
Transconductance
0.0115 S
Amplification factor
100
Max plate voltage
330 V
Max screen voltage
330 V
Max plate dissipation
5 W
Max screen dissipation
1.1 W

Source is a product-information/reference sheet and does not print the referenced base tube's section ratings/characteristics; promoted fields intentionally not inferred from an external datasheet.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
37000 Ω
Transconductance
0.0027 S
Amplification factor
100
Max plate voltage
330 V
Max plate dissipation
1 W

Source is a product-information/reference sheet and does not print the referenced base tube's section ratings/characteristics; promoted fields intentionally not inferred from an external 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

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Pentode

Capacitance

  • Grid #1 to Plate

    0.1 pF

  • Input Capacitance

    11 pF

  • Output Capacitance

    4.2 pF

SECTION 2

Triode

Capacitance

  • Grid to Plate

    4.4 pF

  • Input Capacitance

    2.4 pF

  • Output Capacitance

    0.36 pF

Other

  • Input: G To {H+K}

    2.4 pF

  • Output: P To (Htk)

    0.36 pF

  • Positive Grid #

    1 V

  • Cathode Bias Resistor

    100 ohm

Characteristic

  • Heater Warm-Up Time A

    1 s

  • Total Dc And Peak

    200 V

  • Nled

    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 voltage

    200 V

    PentodeSection;VideoAmplifier

  • Grid 2 voltage

    150 V

    PentodeSection;VideoAmplifier

  • Plate current

    25 mA

    PentodeSection;VideoAmplifier

  • Grid 2 current

    5.5 mA

    PentodeSection;VideoAmplifier

SECTION 2

Triode

Characteristic

  • Plate voltage

    250 V

    TriodeSection

  • Grid 1 voltage

    -2 V

    TriodeSection

  • Plate current

    2 mA

    TriodeSection

  • 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

Capacitance

  • Grid 1 to plate capacitance

    0.1 pF

    Inherited from explicitly referenced 6GN8 parent type.

  • Input capacitance

    11 pF

    Inherited from explicitly referenced 6GN8 parent type.

  • Output capacitance

    4.2 pF

    Inherited from explicitly referenced 6GN8 parent type.

Other

  • Plate voltage

    200 V

    ClassA1 Inherited from explicitly referenced 6GN8 parent type.

  • Plate current

    25 mA

    ClassA1 Inherited from explicitly referenced 6GN8 parent type.

  • Screen voltage

    150 V

    ClassA1 Inherited from explicitly referenced 6GN8 parent type.

  • Screen current

    5.5 mA

    ClassA1 Inherited from explicitly referenced 6GN8 parent type.

Characteristics

  • Instantaneous plate current

    55 mA

    Plate60V;Screen150V;Grid1=0V Inherited from explicitly referenced 6GN8 parent type.

SECTION 2

Triode

Capacitance

  • Grid-to-plate capacitance

    4.4 pF

    Inherited from explicitly referenced 6GN8 parent type.

  • Input capacitance

    2.4 pF

    Inherited from explicitly referenced 6GN8 parent type.

  • Output capacitance

    0.36 pF

    Inherited from explicitly referenced 6GN8 parent type.

Other

  • Plate voltage

    250 V

    ClassA1 Inherited from explicitly referenced 6GN8 parent type.

  • Plate current

    2 mA

    ClassA1 Inherited from explicitly referenced 6GN8 parent type.

Data set 04

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 2

Triode

Characteristic

  • Heater Voltage (ac/dc)

    10.5 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

  • Grid-No.l (Control-Grid) Voltage, Positive-bias value

    0 volt

    Published value from supplied target entry

  • Plate Dissipation

    -

    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

    200 volts

    Published value from supplied target entry

  • Grid-No

    150

    Published value from supplied target entry

  • Grid-No.l Voltage

    0 volts

    Published value from supplied target entry

  • Amplification Factor

    100

    Published value from supplied target entry

  • Plate Resistance (Approx.)

    60000 ohms

    Published value from supplied target entry

  • Transconductance

    11500

    Published value from supplied target entry

  • Plate Current

    1

    Published value from supplied target entry

  • Grid-No

    5.5 mA

    Published value from supplied target entry

  • Heater Voltage

    7.6 volts

    Published value from supplied target entry

  • Heater Current

    0.3 ampere

    Published value from supplied target entry

  • Plate Voltage

    250 volts

    Published value from supplied target entry

  • Grid-No

    150 volts

    Published value from supplied target entry

  • Plate Dissipation

    -

    Published value from supplied target entry

  • Grid-No

    0.5 watt

    Published value from supplied target entry

  • Cathode Current

    18 mA

    Published value from supplied target entry

  • Plate Voltage

    170 volts

    Published value from supplied target entry

  • Grid-No.l (Control-Grid) Voltage

    -1.2 volts

    Published value from supplied target entry

  • Plate Current

    10 mA

    Published value from supplied target entry

  • Grid-No

    3.3 mA

    Published value from supplied target entry

  • Transconductance

    12000

    Published value from supplied target entry

  • Plate Resistance

    0.35 megohm

    Published value from supplied target entry

  • Amplification Factor

    17

    Published value from supplied target entry