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Voltage Triode Pentode ·Pentode-Triode

6X9

Combined triode-pentode for television video, sync, burst, IF, AGC, or related signal-processing circuits.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
-
Base pins
10
Nominal heater
6.3 V / 410 mA

Description

High-mu triode plus sharp-cutoff pentode used in television receiver applications.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
10
Nominal heater voltage
6.3 V
Nominal heater current
410 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
6000 Ω
Transconductance
0.0065 S
Max plate voltage
125 V

Promoted from published ratings/characteristics where directly applicable; additional published values retained in TUBE_SECTION_PARAMETER.

Section 2

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
300000 Ω
Transconductance
0.0055 S
Max plate voltage
125 V
Max screen voltage
125 V

Promoted from published ratings/characteristics where directly applicable; additional published values retained in TUBE_SECTION_PARAMETER.

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

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate Voltage 275

    275 V

    Published in approved ECF200 target datasheet entry; Section1

  • 0

    0 V

    Published in approved ECF200 target datasheet entry; Section1

  • Ptate D'ssipation 1.7

    2.3 W

    Published in approved ECF200 target datasheet entry; Section1

  • For grid-No.2 voltages up to

    137.5 V

    Published in approved ECF200 target datasheet entry; Section1

  • For grid-No.2 voltages between 137.5 and

    275 V

    Published in approved ECF200 target datasheet entry; Section1

  • 20 11K —7

    -6.5 V

    Published in approved ECF200 target datasheet entry; Section1

  • Heater Voltage

    6.3 V

    Published in approved ECF200 target datasheet entry; Section1

  • Heater Current

    410 mA

    Published in approved ECF200 target datasheet entry; Section1

  • Pentode Grid No.l to Triode Grid <

    1.2 pF

    Published in approved ECF200 target datasheet entry; Section1

  • Pentode Plate to Triode Plate <

    1.5 pF

    Published in approved ECF200 target datasheet entry; Section1

  • Plate Supply Voltage 550

    550 V

    Published in approved ECF200 target datasheet entry; Section1

  • Plate Voltage 250

    250 V

    Published in approved ECF200 target datasheet entry; Section1

  • Cathode Current 18

    18 mA

    Published in approved ECF200 target datasheet entry; Section1

  • Plate Dissipation 1.5

    2.1 W

    Published in approved ECF200 target datasheet entry; Section1

  • Grid-No. 2 Input

    0.7 W

    Published in approved ECF200 target datasheet entry; Section1

  • Grid-No. 1-Circuit Resistance 1

    1 MΩ

    Published in approved ECF200 target datasheet entry; Section1

  • * With a maximum duty factor of 0.18 and maximum pulse duration of

    18 microseconds

    Published in approved ECF200 target datasheet entry; Section1

  • Heater Voltage (ac/dc)

    6.3 V

    Published in approved ECF200 target datasheet entry; Section1

  • Heater Current

    1.25 A

    Published in approved ECF200 target datasheet entry; Section1

Characteristic

  • t,ee 125

    125 V

    Published in approved ECF200 target datasheet entry; Section1

  • Grid-No.2 Voltage

    125 V

    Published in approved ECF200 target datasheet entry; Section1

  • Plate Resistance (Appiox.) 6000

    300000 Ω

    Published in approved ECF200 target datasheet entry; Section1

  • Transconductance 6500

    5500 µS

    Published in approved ECF200 target datasheet entry; Section1

  • Plate Voltage 170

    160 V

    Published in approved ECF200 target datasheet entry; Section1

  • Grid-No.3 (Suppressor-Grid) Voltage

    0 V

    Published in approved ECF200 target datasheet entry; Section1

  • Grid-No.2 Voltage

    135 V

    Published in approved ECF200 target datasheet entry; Section1

  • Grid-No.l (Control-Grid) Voltage —1

    -1.7 V

    Published in approved ECF200 target datasheet entry; Section1

  • Transconductance 4800

    14000 µS

    Published in approved ECF200 target datasheet entry; Section1

  • Plate Current 8.6

    13 mA

    Published in approved ECF200 target datasheet entry; Section1

  • Grid-No.2 Current

    5 mA

    Published in approved ECF200 target datasheet entry; Section1

Capacitance

  • Plate to All Other Elements (except grid)

    3 pF

    Published in approved ECF200 target datasheet entry; Section1

  • Grid to All Other Elements (except plate)

    2.5 pF

    Published in approved ECF200 target datasheet entry; Section1

  • Plate to Grid

    2 pF

    Published in approved ECF200 target datasheet entry; Section1

  • Plate to All Other Elements (except grid No.l)

    3.5 pF

    Published in approved ECF200 target datasheet entry; Section1

  • Grid No.l to All Other Elements (except plate)

    6.5 pF

    Published in approved ECF200 target datasheet entry; Section1

  • Grid No.l to Cathode

    4 pF

    Published in approved ECF200 target datasheet entry; Section1

  • Plate to Grid No.l <

    6.5 pF

    Published in approved ECF200 target datasheet entry; Section1

  • Grid No.l to Grid No.2

    1.8 pF

    Published in approved ECF200 target datasheet entry; Section1

  • Pentode Grid No.l to Triode Plate

    15 pF

    Published in approved ECF200 target datasheet entry; Section1

SECTION 2

Pentode

Other

  • Plate Voltage 275

    275 V

    Published in approved ECF200 target datasheet entry; Section2

  • 0

    0 V

    Published in approved ECF200 target datasheet entry; Section2

  • Ptate D'ssipation 1.7

    2.3 W

    Published in approved ECF200 target datasheet entry; Section2

  • For grid-No.2 voltages up to

    137.5 V

    Published in approved ECF200 target datasheet entry; Section2

  • For grid-No.2 voltages between 137.5 and

    275 V

    Published in approved ECF200 target datasheet entry; Section2

  • 20 11K —7

    -6.5 V

    Published in approved ECF200 target datasheet entry; Section2

  • Heater Voltage

    6.3 V

    Published in approved ECF200 target datasheet entry; Section2

  • Heater Current

    410 mA

    Published in approved ECF200 target datasheet entry; Section2

  • Pentode Grid No.l to Triode Grid <

    1.2 pF

    Published in approved ECF200 target datasheet entry; Section2

  • Pentode Plate to Triode Plate <

    1.5 pF

    Published in approved ECF200 target datasheet entry; Section2

  • Plate Supply Voltage 550

    550 V

    Published in approved ECF200 target datasheet entry; Section2

  • Plate Voltage 250

    250 V

    Published in approved ECF200 target datasheet entry; Section2

  • Cathode Current 18

    18 mA

    Published in approved ECF200 target datasheet entry; Section2

  • Plate Dissipation 1.5

    2.1 W

    Published in approved ECF200 target datasheet entry; Section2

  • Grid-No. 2 Input

    0.7 W

    Published in approved ECF200 target datasheet entry; Section2

  • Grid-No. 1-Circuit Resistance 1

    1 MΩ

    Published in approved ECF200 target datasheet entry; Section2

  • * With a maximum duty factor of 0.18 and maximum pulse duration of

    18 microseconds

    Published in approved ECF200 target datasheet entry; Section2

  • Heater Voltage (ac/dc)

    6.3 V

    Published in approved ECF200 target datasheet entry; Section2

  • Heater Current

    1.25 A

    Published in approved ECF200 target datasheet entry; Section2

Characteristic

  • t,ee 125

    125 V

    Published in approved ECF200 target datasheet entry; Section2

  • Grid-No.2 Voltage

    125 V

    Published in approved ECF200 target datasheet entry; Section2

  • Plate Resistance (Appiox.) 6000

    300000 Ω

    Published in approved ECF200 target datasheet entry; Section2

  • Transconductance 6500

    5500 µS

    Published in approved ECF200 target datasheet entry; Section2

  • Plate Voltage 170

    160 V

    Published in approved ECF200 target datasheet entry; Section2

  • Grid-No.3 (Suppressor-Grid) Voltage

    0 V

    Published in approved ECF200 target datasheet entry; Section2

  • Grid-No.2 Voltage

    135 V

    Published in approved ECF200 target datasheet entry; Section2

  • Grid-No.l (Control-Grid) Voltage —1

    -1.7 V

    Published in approved ECF200 target datasheet entry; Section2

  • Transconductance 4800

    14000 µS

    Published in approved ECF200 target datasheet entry; Section2

  • Plate Current 8.6

    13 mA

    Published in approved ECF200 target datasheet entry; Section2

  • Grid-No.2 Current

    5 mA

    Published in approved ECF200 target datasheet entry; Section2

Capacitance

  • Plate to All Other Elements (except grid)

    3 pF

    Published in approved ECF200 target datasheet entry; Section2

  • Grid to All Other Elements (except plate)

    2.5 pF

    Published in approved ECF200 target datasheet entry; Section2

  • Plate to Grid

    2 pF

    Published in approved ECF200 target datasheet entry; Section2

  • Plate to All Other Elements (except grid No.l)

    3.5 pF

    Published in approved ECF200 target datasheet entry; Section2

  • Grid No.l to All Other Elements (except plate)

    6.5 pF

    Published in approved ECF200 target datasheet entry; Section2

  • Grid No.l to Cathode

    4 pF

    Published in approved ECF200 target datasheet entry; Section2

  • Plate to Grid No.l <

    6.5 pF

    Published in approved ECF200 target datasheet entry; Section2

  • Grid No.l to Grid No.2

    1.8 pF

    Published in approved ECF200 target datasheet entry; Section2

  • Pentode Grid No.l to Triode Plate

    15 pF

    Published in approved ECF200 target datasheet entry; Section2